{"title":"Discount Group 4","description":"","products":[{"product_id":"inspection-microscope-20x-with-builtin-light-source-micr-stx-20x","title":"Inspection microscope, 20x with battery light source","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eThis is a 'small' microscope because it's only \u003cspan\u003e8½ tall (most microscopes are 12 to 15 inches tall) \u003cem\u003eand\u003c\/em\u003e it's made of plastic \u003cem\u003eand\u003c\/em\u003e it's small and lightweight enough to carry in a bag. But it's not a pocket microscope.  And it's not a toy.  It's from the same manufacturers who make  our full-size professional microscopes, with large wide-field (WF) eyepieces.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eSize: 8½ X 4 X 5½ inches\u003c\/li\u003e\n\u003cli\u003eWeight: 500g\u003c\/li\u003e\n\u003cli\u003ePower:  2 X AA batteries. \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eUse it instead of a loupe, the quality is better than \u003cem\u003eany\u003c\/em\u003e\u003cem\u003e \u003c\/em\u003e20X loupe and, being stereo, it's \u003cem\u003eso\u003c\/em\u003e easy to focus and to use.  In fact, I would say: if you want 20X magnification and want the best quality and don't want the expense (and weight!) of a full-size microscope - this microscope is ideal, and it's small fit into a bag and lightweight enough to carry around.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759705505983,"sku":"MICR-STX-20X","price":39.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/micr-stx-20x-1.jpg?v=1629280654"},{"product_id":"gemmological-microscope-micr-gem","title":"Gemmological microscope","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eSwitchable to 20X or 40X magnification.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eBuilt-in stone holder to hold the stone at any angle.\u003c\/p\u003e\n\u003cp\u003eFlexible lighting system: fixed 45 degree spot (dimmable), 45 degree flatlight, under-stage light (dimmable), attachment for dark field illumination (the light 'seeps' in around the edge). \u003c\/p\u003e\n\u003cp\u003eOf course, the optical quality is good too, which is what you need for examining inclusions in gemstones.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGuarantee: 1 year\u003c\/span\u003e\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759705571519,"sku":"MICR-GEM","price":395.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/micr-gem-10.jpg?v=1682251845"},{"product_id":"zoom-microscope-375x-to-36x-micr-zoom-ztxe","title":"Zoom microscope, 3.75X to 36X","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eOf the two zoom microscopes this one has the widest range of magnification, thanks to it having two sets of eyepieces.\u003c\/p\u003e\n\u003cp\u003eThe unusual ability to turn the magnification \u003cem\u003edown\u003c\/em\u003e means you can carry out repairs, 3.75X to 7.5X being the best for tiny items of jewellery and for watch movement repairs. You can, of course, turn the magnification right up for other applications. \u003c\/p\u003e\n\u003ch2\u003eSpecification\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eObjective \/ zoom: 0.75 to 3.6\u003c\/li\u003e\n\u003cli\u003eWorking distance about 4 inches.\u003c\/li\u003e\n\u003cli\u003eLighting: you can switch between reflected lighting (the 45 degree light), transmitted lighting (under the stage), both together or no lights at all.\u003cbr\u003ePower, mains\u003c\/li\u003e\n\u003cli\u003eDimensions 400 x 330 x 145mm (15.75 x 13 x 5.75 in)\u003c\/li\u003e\n\u003cli\u003eWeight 4Kg.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003eIncludes \u003cem\u003etwo\u003c\/em\u003e pairs of eyepieces: \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e5X w\/f  (wide field) 14mm dia. gives continuous zoom from 3.75X to 18X\u003c\/li\u003e\n\u003cli\u003e10X w\/f  (wide field) 20mm dia. gives continuous zoom from 7.5X to 36X\u003cbr\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eApplications\u003c\/h2\u003e\n\u003cp\u003eAt  3.5X to about 5X, you will be able to use your hands, e.g. for painting miniatures, micro-soldering, any fine repairs.\u003c\/p\u003e\n\u003cp\u003eAt about 5X to 8X you will be able to work with fine tools on the tiniest objects, e.g. watch movements.\u003c\/p\u003e\n\u003cp\u003eFrom about 10X this is a general 'inspection' microscope, for gemstones, stamps, coins...everything you might use a jeweller's loupe for (but \u003cem\u003emuch\u003c\/em\u003e better optical quality!).  \u003c\/p\u003e\n\u003cp\u003eFor jewellery, antiques renovation (even stamps and coins) you are unlikely to turn the magnification up beyond 20X, but you have the option.\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759706980543,"sku":"MICR-ZOOM-ZTXE","price":295.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/micr-zoom-ztxe-3.jpg?v=1627465726"},{"product_id":"eyepiece-microscope-professional-usb-microscope-micr-usb2","title":"Eyepiece for microscope (professional USB microscope)","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\u003cp\u003ePowerful but easy to use software enables the capture of stills and live video (it actually works!) so you can view micro-organisms swimming. \u003c\/p\u003e\u003cp\u003eAlso suitable for jewellers and watchmakers who want to show customers their repairs; valuers taking a record of diamonds; gemmologists making identifications.\u003c\/p\u003e\u003cp\u003eWorks with Windows and Mac.\u003c\/p\u003e\u003cp\u003eResolution 1.3MP\u003c\/p\u003e\u003cp\u003eClick on picture to see an example of this in use.\u003c\/p\u003e\u003cp\u003eFor detailed specification and a review \u003cvariable name=\"LINK\"\u003e\u003c\/variable\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759707734207,"sku":"MICR-USB2","price":95.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/micr-usb2-1.jpg?v=1629280671"},{"product_id":"ring-stretcher-in-wooden-box-rgstretch","title":"Ring Stretcher in wooden box","description":"\u003cp\u003e\u003ci\u003e\u003cspan style=\"font-size: 10.0pt; mso-bidi-font-size: 11.0pt; font-family: 'Arial',sans-serif;\"\u003eSpecial clearance price while stocks last (once sold, there are no more)\u003c\/span\u003e\u003c\/i\u003e\u003c\/p\u003e\n\u003cp\u003eHandheld ring stretcher.\u003c\/p\u003e\n\u003cp\u003eWorks by 'squashing' the ring around the outside as you turn handle. \u003c\/p\u003e\n\u003cp\u003eIncludes 16 steel discs for ring shanks with thicknesses of between 4mm and 1mm.\u003c\/p\u003e\n\u003cp\u003eYes it works fine but it's hard work compared with the large bench \/ workshop models .\u003c\/p\u003e\n\u003cp\u003eHowever, as a low-cost, simple, effective ring-sizing machine...go for it!\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759708455103,"sku":"RGSTRETCH","price":32.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/rgstretch-2.jpg?v=1629280677"},{"product_id":"rolex-opener-stand-type-open-rol-2","title":"Rolex Opener, stand type","description":"\n\u003cp\u003eBench tool for opening the backs of Rolex watches, can be screwed to a bench or fitted into a vice.\u003c\/p\u003e\n\u003cp\u003eIncludes six dies for watch backs of sizes:\u003c\/p\u003e\n\u003cp\u003e28.3mm\u003c\/p\u003e\n\u003cp\u003e29.5mm\u003c\/p\u003e\n\u003cp\u003e26.5mm\u003c\/p\u003e\n\u003cp\u003e22.5mm\u003c\/p\u003e\n\u003cp\u003e20.2mm\u003c\/p\u003e\n\u003cp\u003e28.5mm\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759710945471,"sku":"OPEN-ROL-2","price":48.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/open-rol-2-1.jpg?v=1629280690"},{"product_id":"press-for-pressing-on-watch-backs-and-watch-glasses-heavy-duty-wbp","title":"Press for pressing on watch backs and watch glasses, heavy duty","description":"\u003cp\u003eA \u003cem\u003epress\u003c\/em\u003e with 23 dies (both round and square) for watches of various diameters and thicknesses.\u003c\/p\u003e\n\u003cp\u003eFor pressing the backs onto 'difficult' watches, It avoids the embarrassment of removing a customer's watch back then not being able to push it back on;\u003c\/p\u003e\n\u003cp\u003eThe same machine is used for fitting on watch glasses. \u003c\/p\u003e\n\u003cp\u003eDid you spot the misprint on the label (see picture)? They mean \u003cem\u003eNylon\u003c\/em\u003e not \u003cem\u003elinen\u003c\/em\u003e. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSIZES\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003eIncluded is the 'base' plus the following:\u003c\/p\u003e\n\u003cp\u003e4 x plastic dies for square watch cases:\u003cbr\u003e 38mm, 32mm, 25mm, 18mm\u003cbr\u003e \u003cbr\u003e 4 x plastic dies for round watch cases:\u003cbr\u003e 15-25mm, 25-35mm, 35-45mm, 45-60mm\u003cbr\u003e \u003cbr\u003e 4 x flat aluminium dies:\u003cbr\u003e 40mm, 35mm, 28mm, 22mm\u003cbr\u003e \u003cbr\u003e 11 x deep aluminium dies:\u003cbr\u003e 42mm, 38mm, 36mm, 34mm, 32mm, 30mm, 28mm, 26mm, 24mm, 22mm, 18mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eINSTRUCTIONS\u003c\/strong\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eFind the dies that fit over the case \/ glass neatly and accurately, turn the wheel slowly until the glass \/ back clicks into place. Do it carefully, if you turn the wheel hard with the dies not in place, you will break the glass \/ watch. Take great care with antique watches, do not use if the back is delicately painted \/ enamelled. \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759713534143,"sku":"WBP","price":49.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/WBP-1.jpg?v=1629280692"},{"product_id":"tardy-book-of-international-hallmarks-tardy","title":"Tardy Book of International Hallmarks","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eInternational Hallmarks on Silver collected by Tardy (more commonly know as The Tardy Hallmark Book).\u003c\/p\u003e\n\u003cp\u003eThis is the English-language edition (most Tardy books are in French). \u003c\/p\u003e\n\u003cp\u003eBuy this book and select another book as a free gift, all you have to do is to select one from SELECT YOUR FREE GIFT (scroll up to see).\u003c\/p\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eCONTENTS: World silver production, cleaning, alloys, monthly prices.\u003c\/p\u003e\n\u003cp\u003eThis is the only book of marks for the entire world, not to be confused with standard hallmark books which only cover Britain and Ireland.\u003c\/p\u003e\n\u003cp\u003eThere are 381 pages of marks by country (alphabetically). There are also 94 pages of marks in picture order (e.g. your mark is a castle, you go to the page of castle-pictures) which is very clever, since seeing a mark does not tell you which country to look up! \u003c\/p\u003e\n\u003ch2\u003eTechnical\u003c\/h2\u003e\n\u003cp\u003eAuthor: Tardy\u003c\/p\u003e\n\u003cp\u003eFormat: softback, 540 pages\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759751315647,"sku":"TARDY","price":39.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/tardy-1.jpg?v=1623671469"},{"product_id":"boxed-ring-stick-uk-us-sizes-63-individual-finger-sizers-rgsk-52rg","title":"Boxed, ring stick + 63 individual finger sizers","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eHeavy duty \u003cstrong\u003ering stick\u003c\/strong\u003e for measuring rings: British A - Z plus 6 extra-large sizes Z+1 to  Z+6.\u003c\/p\u003e\n\u003cp\u003e63 \u003cstrong\u003eindividual rings\u003c\/strong\u003e for measuring fingers: British sizes A to Z, plus 6 extra-large sizes \u003cspan data-mce-fragment=\"1\"\u003eZ+1 to  Z+6.\u003c\/span\u003e  Includes half-sizes (that's why there are so many rings). The \u003cem\u003ewidth\u003c\/em\u003e (not diameter) of each ring is 4mm.\u003c\/p\u003e\n\u003cp\u003ePosh fitted box includes clear labelling of sizes. Box measures 13\" X 4½\" X 1½\"\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759755608255,"sku":"RG-SET-63","price":49.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/rg-set-63-1.jpg?v=1658404700"},{"product_id":"boxed-ring-stick-uk-us-sizes-25-individual-finger-sizers-rgstk-wr","title":"Boxed, ring stick (UK + US sizes) + 25 individual finger sizers","description":"\u003cp\u003eHeavy duty\u003cstrong\u003e ring stick\u003c\/strong\u003e: British sizes H to Z \u003cspan data-mce-fragment=\"1\"\u003e plus 6 extra-large sizes (Z+1 to Z+6). \u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinger sizers\u003c\/strong\u003e: 25 Individual rings for measuring fingers, sizes\u003cspan data-mce-fragment=\"1\"\u003e H to Z \u003c\/span\u003e\u003cspan data-mce-fragment=\"1\"\u003e plus 6 extra-large sizes (Z+1 to Z+6).   The \u003cem\u003ewidth\u003c\/em\u003e (not diameter) of each ring is 4mm. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eConversion chart in lid to who you the circumference and diameter for each size. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eFitted box measures 13\" X 5½\" X 1¾\"\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759755706559,"sku":"RGSTK\/WR","price":42.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/rgstkwr.jpg?v=1632922925"},{"product_id":"sovereign-coin-tester-includes-001g-scale-sov-tester-set","title":"Sovereign coin tester (including scale)","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003e** Special offer, ends 8 December **\u003c\/p\u003e\n\u003cp\u003eTester for gold Sovereigns \/ half Sovereigns.\u003c\/p\u003e\n\u003cp\u003eIncludes \u003cbr\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eaccurate size gauge for both diameter and thickness\u003c\/li\u003e\n\u003cli\u003ecoin balance, weighs down to 0.01g (this is an essential part of the test)\u003c\/li\u003e\n\u003cli\u003every clear instructions\u003c\/li\u003e\n\u003cli\u003eFree chocolate Sovereign while stocks last\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eSummary of instructions\u003c\/h2\u003e\n\u003cp\u003eIf the coin is the correct diameter (it fits neatly in the circle) and the correct width (it fits neatly through the slot) and is the correct weight, then it's 22ct gold. \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/files\/Sov_tester_insts.pdf?v=1647273754\"\u003eDownload the instruction sheet\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eAlternatives\u003c\/h2\u003e\n\u003cp\u003eNeed to test other coins? \u003ca href=\"https:\/\/www.quicktest.co.uk\/collections\/gold-testers-specific-gravity-density-sovereign-tester\/products\/specific-gravity-density-kit-by-quicktest\"\u003eSpecific Gravity (density) Kit by Quicktest\u003c\/a\u003e £169.00\u003c\/p\u003e\n\u003cp\u003eNeed to test larger items? \u003ca href=\"https:\/\/www.quicktest.co.uk\/collections\/gold-testers-specific-gravity-density-sovereign-tester\/products\/electronic-densimeter-density-balance-0001g-md200s-by-mirage-md-200s\"\u003eComputerised densimeter\u003c\/a\u003e £995.00\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759768355007,"sku":"SOV-TESTER-SET","price":37.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/sov-tester-set-2_4f2a58f8-1e38-4eea-bb63-ec2d6a26ef6a.jpg?v=1667133903"},{"product_id":"gold-testing-needles-set-of-6-test-needles","title":"Gold Testing Needles, set of 6","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eNeedles of gold of known purity (carat) for use with a touchstone: 8ct, 10ct, 12ct, 14ct and 18ct gold; and 999 silver.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759773925567,"sku":"TEST-NEEDLES","price":35.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/test-needles-1.jpg?v=1630148871"},{"product_id":"multi-tester-for-diamond-moissanite-ruby-sapphire-experior-by-gemtrue-multi-exp","title":"Multi tester for diamond, Moissanite, ruby, sapphire.  Experior by Gemtrue","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eGemtrue Multi Experior diamond \/ Moissanite \/ Sapphire tester.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eTests for diamond \u003cem\u003eand\u003c\/em\u003e Moissanite\u003cem\u003e \u003c\/em\u003e\u003cem\u003eand\u003c\/em\u003e ruby\/sapphire.\u003c\/li\u003e\n\u003cli\u003eThe top of the tester lights up, so there are no words to read, no scale of LED lights, and each result has a characteristic bleep, so you don't even have to look at the lights. Can be used right-handed or left-handed.\u003c\/li\u003e\n\u003cli\u003eTo see an article all about diamond testing \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/the-complete-guide-to-testing-diamonds\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e click here.\u003c\/span\u003e\u003c\/a\u003e \u003c\/li\u003e\n\u003cli\u003eGuarantee, 1 year.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eOperation\u003c\/h2\u003e\n\u003cp\u003eSwitch on, wait for it to warm up. The entire top lights up, a different colour for each of: \u003cem\u003eMetal Alert\u003c\/em\u003e (i.e. you missed the stone and touched the setting), Diamond, \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/distinguishing-diamond-from-moissanite\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003eMoissanite\u003c\/span\u003e\u003c\/a\u003e, Sapphire\/Ruby.\u003c\/p\u003e\n\u003ch2\u003eTechnical\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003ePHYSICAL\u003c\/strong\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eDimensions: 6¼\"X1½\"X¾\" 155X38X20mm\u003c\/p\u003e\n\u003cp\u003eWeight: 80g\u003c\/p\u003e\n\u003cp\u003eTip: can test stones down to 0.02ct (2pt) in size. \u003c\/p\u003e\n\u003cp\u003eOperating temperature: recommended between 18 and 27 degrees C (64 to 81 degrees F). Though tests show it works fine down to 15 degrees C. (59 degrees F).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eRESPONSE TIME\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWarm-up time when switched on: 20 to 30 seconds\u003c\/p\u003e\n\u003cp\u003eTesting: result in 1 or 2 seconds\u003c\/p\u003e\n\u003cp\u003eWarm-up time between tests: 2 or 3 seconds\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eUV\u003c\/strong\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eThere's a switch to operate both the tester and the UV light at the same time. A UV light gives more reliable results on Moissanite. But please see the tab, \"LIMITATIONS\". \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePOWER \u003c\/strong\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eOne PP3 battery (supplied).\u003c\/p\u003e\n\u003cp\u003eSocket for mains power with a suitable adaptor (9 volt power supply) - power supply not included. \u003cem\u003eNOTE:\u003c\/em\u003e this is to use it plugged-in rather than with a battery, \u003cem\u003ethis is not a charging port to recharge the tester!\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBattery life:\u003c\/strong\u003e don't know, a few thousand tests?\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eLow-battery indicator:\u003c\/strong\u003e none, when it fails to warm up, it needs a new battery\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAuto-shut-off:\u003c\/strong\u003e yes, it bleeps then turns itself off if not used for five minutes.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eACCESSORIES \/ PRESENTATION\u003c\/strong\u003e \u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003efitted case\u003c\/li\u003e\n\u003cli\u003ecarrying strap\u003c\/li\u003e\n\u003cli\u003estone-holder\u003c\/li\u003e\n\u003cli\u003epolishing cloth (to remove any surface grease-free before testing)\u003c\/li\u003e\n\u003cli\u003einstructions\u003c\/li\u003e\n\u003cli\u003eunique system for recording the readings (no app. required): a note pad\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003eRELIABILITY\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor testing diamonds and Moissanite,\u003c\/strong\u003e I haven't tested thousands of stones but I estimate that you would get the correct result over 95% of the time.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFor testing ruby and sapphire,\u003c\/strong\u003e if it reads ruby\/sapphire there's a pretty good chance it's ruby or sapphire. However, the readings for ruby\/sapphire overlap with other stones \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/files\/gemtest-pgi-chart-large.jpg?v=1629216164\"\u003e(\u003cspan style=\"color: #0000ff;\"\u003esee my chart\u003c\/span\u003e\u003c\/a\u003e) - a lot of chrysoberyl and topaz will give the same reading as ruby\/sapphire, as will some spinel. Any large very cold stone will also read ruby\/sapphire (so please check that stones are at room temperature when tested).\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003e\u003cstrong\u003eDeveloped a fault in the guarantee period (1 year):\u003c\/strong\u003e 2%\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003eLimitations\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp class=\"MsoNormal\"\u003e\u003cspan\u003eMany of the latest Moissanites are manufactured so that they fool this type of diamond tester (see the article about \u003c\/span\u003e\u003ca href=\"\/blogs\/testing-diamonds-gemstones\/the-complete-guide-to-testing-diamonds\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003ediamond testing\u003c\/span\u003e\u003c\/a\u003e). As you will see in the article, shining a more powerful UV light onto the stone will catch most (but not guaranteed all!) of these 'difficult' Moissanites. Add a UV torch to your order (see OPTIONAL EXTRAS). Alternatively, go for the latest model, \u003ca href=\"https:\/\/www.quicktest.co.uk\/products\/multi-tester-for-diamond-moissanite-ruby-sapphire-arcus-by-gemtrue\"\u003ethe Arcus\u003c\/a\u003e, it has an extra-powerful UV light built into the tester. \u003c\/p\u003e\n\u003cp class=\"MsoNormal\"\u003eSynthetic diamonds (not to be confused with simulants!) usually register as Moissanite\u003c\/p\u003e\n\u003ch2\u003eDisclaimer\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eAll testers  must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. Nothing is 100% accurate, you must understand the limitations of any tester you buy. We also suggest you regularly test known samples to check for any obvious faults. Full support given for items you buy from QUICKTEST.\u003c\/p\u003e\n\u003ch2\u003eAlternatives\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe Multi-Experior distinguishes diamond from non-diamond (simulant\/imitation).  It will \u003cem\u003enot\u003c\/em\u003e distinguish natural (mined) diamond from synthetic (lab-grown) diamond - that requires a very specialist tester (£700.00 to £1000.00) see \u003ca href=\"https:\/\/www.quicktest.co.uk\/products\/ari-synthetic-diamond-tester-by-presidium\" target=\"_blank\"\u003eARI\u003c\/a\u003e, \u003ca href=\"https:\/\/www.quicktest.co.uk\/products\/arete-synthetic-diamond-tester-by-presidium\" target=\"_blank\"\u003eARETE\u003c\/a\u003e\u003cspan\u003e and \u003ca href=\"https:\/\/www.quicktest.co.uk\/products\/oti-by-presidium-for-diamonds-natural-synthetic-non-diamond-moissanite-copy\"\u003eAPEX\u003c\/a\u003e. It is important not to confuse \"Synthetic\" with \"simulant\", see \u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-diamonds-gemstones\/guide-to-buying-diamond-testers#section_2\"\u003etechnical terms\u003c\/a\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eFor a summary of all diamond and gem testers see the \u003ca href=\"\/testing-diamonds-gemstones\/diamond-tester-comparison-chart\"\u003e\u003cem\u003eComparison Chart\u003c\/em\u003e\u003c\/a\u003e or see a more detailed explanation of what the various types of tester can (and can't) detect at our \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/diamond-tester-comparison-chart\"\u003eGuide to Buying Diamond Testers\u003c\/a\u003e. \u003c\/span\u003e\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759777071295,"sku":"MULTI-EXP","price":199.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/multi-exp_1of2.jpg?v=1629281128"},{"product_id":"moissanite-tester-by-gemvue-moissanite-plus-moiss-4","title":"Moissanite tester by GemTrue (Moissanite Plus)","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eMust be used in combination with a diamond tester,  i.e. if a simple (thermal conductivity) diamond tester says the stone might be diamond or Moissanite (you won't know which!), test it on this to see if it's Moissanite.  \u003c\/p\u003e\n\u003ch2\u003eAccuracy \/ Guarantee\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eA 'Moissanite' reading on this tester indicates that there's a probability that the stone is Moissanite. It is not guaranteed, the latest Moissanites will show up as \u003cem\u003ediamond\u003c\/em\u003e on this tester and most \u003cem\u003esynthetic\u003c\/em\u003e diamonds show up as Moissanite. In addition, the slightest layer of grease on the stone (e.g. by touching it with your finger) will give incorrect results. \u003c\/p\u003e\n\u003cp\u003eAll testers have their limitations, see our article about \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/guide-to-buying-diamond-testers\" rel=\"noopener\" target=\"_blank\"\u003ehow to choose a diamond tester\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eTo see an article all about \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/distinguishing-diamond-from-moissanite\"\u003eMoissanite and Moissanite-testing\u003c\/a\u003e, click here.\u003c\/p\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003e7¼ X 1¼ X 1 inches. 180X30X25mm.\u003c\/p\u003e\n\u003cp\u003eTakes one 9v PP3 battery (supplied). \u003c\/p\u003e\n\u003ch2\u003eDisclaimer\u003c\/h2\u003e\n\u003cp\u003eAll testers  must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. Nothing is 100% accurate, you must understand the limitations of any tester you buy. We also suggest you regularly test known samples to check for any obvious faults. Full support given for items you buy from QUICKTEST.\u003c\/p\u003e\n\u003ch2\u003eAlternatives\u003c\/h2\u003e\n\u003cp\u003eThe MOISSANITE tester detects \u003cem\u003emost\u003c\/em\u003e Moissanites. However, you must only test stones that you think might be diamond (e.g. you have tested them on a \u003cem\u003ethermal\u003c\/em\u003e diamond tester). \u003cspan\u003eFor a summary of all diamond and gem testers see the \u003ca href=\"\/testing-diamonds-gemstones\/diamond-tester-comparison-chart\"\u003e\u003cem\u003eComparison Chart\u003c\/em\u003e\u003c\/a\u003e, or see a more detailed explanation of what the various types of tester can (and can't) detect at our \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/diamond-tester-comparison-chart\"\u003eGuide to Buying Diamond Testers\u003c\/a\u003e. \u003c\/span\u003e\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759777398975,"sku":"MOISS-4","price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/moiss-4_2of3.jpg?v=1629281138"},{"product_id":"diamondmeasuring-loupe-dg-loupe2","title":"Diamond-measuring loupe","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eA micro-printed scale set into an amazing 10X30 magnifier. The scale is marked in millimetres (conversion to carats included) so that you can measure diamonds 1 point to...really big (over 20ct).\u003c\/p\u003e\n\u003cp\u003eIncludes a built-in LED light which lights up the scale perfectly.\u003cbr\u003eHuge eyepiece gives perfect vision.\u003c\/p\u003e\n\u003cp\u003eExternal dimensions 50mm tall X 42mm diameter, plus a plush felt-lined leather case. Will easily fit into a small bag...or a large pocket.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759779889343,"sku":"DG-LOUPE2","price":49.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/dg-loupe2-3.jpg?v=1630062968"},{"product_id":"diamondmeasuring-loupe-dg-loupe","title":"Diamond-measuring loupe","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eA micro-printed scale set into an excellent-quality 10X21 magnifier. The scale is marked in points and carats. Measure the diameter of the top (table) of the stone, the bottom reading (see picture) is mm, the top is carat\/points. \u003c\/p\u003e\n\u003cp\u003eMeasures from 1 point to 4 carats.\u003c\/p\u003e\n\u003cp\u003eThe actual item measures 35mm tall X 20mm diameter and is supplied in a soft leather pouch.\u003cbr\u003e\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759780151487,"sku":"DG-LOUPE","price":44.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/dg-loupe-3.jpg?v=1629962472"},{"product_id":"computerised-gemstone-gauge-presid-pgcg-dg-presid","title":"Computerised gemstone gauge (presid PGCG)","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAS A GEM GAUGE\u003c\/strong\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eYou might think to yourself: rather than measure a stone, look up charts and formulae, then use a calculator to work out the weight - can't this all be done automatically, with a computer built into the gauge??\u003c\/p\u003e\n\u003cp\u003eThe answer is yes. Select the stone on the display, measure it, the weight will be displayed. This is the top model of gauge from the best manufacturers of electronic gem testing equipment.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAS A GEM TESTER\u003c\/strong\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eWeigh the stone very accurately on a weighing machine, measure it, the built-in computer will calculate it's specific gravity (SG) and give a suggestion as to what the stone might be. This is not a 'guaranteed' method of identifying gemstones, since many gemstones have similar SGs, but it's useful guide.\u003c\/p\u003e\n\u003cp\u003eGuarantee: 1 year\u003c\/p\u003e\n\u003ch2\u003eStones listed\u003c\/h2\u003e\n\u003cp\u003eThese are the stones listed, whether you use this as a measuring gauge to see the size (weight) of a stone, or whether you weigh the stone and get the computer to suggest its identity:\u003c\/p\u003e\n\u003cp\u003eAlbite feldspar, Alexandrite, Amber, Andradite garnet, Apatite\u003c\/p\u003e\n\u003cp\u003eBenitoite, Beryl, Brazillianite\u003c\/p\u003e\n\u003cp\u003eCalcite, Chalcedony, Coral, Corundum, Cubic zirconium oxide\u003c\/p\u003e\n\u003cp\u003eDanburite, Diamond, Diopside, Dipotase\u003c\/p\u003e\n\u003cp\u003eFluorite\u003c\/p\u003e\n\u003cp\u003eGGG, Glass\u003c\/p\u003e\n\u003cp\u003eHematite\u003c\/p\u003e\n\u003cp\u003eIdocrase, Iolite\u003c\/p\u003e\n\u003cp\u003eJadeite, Jet\u003c\/p\u003e\n\u003cp\u003eKornerupine, Kyanite\u003c\/p\u003e\n\u003cp\u003eLabradorite\u003c\/p\u003e\n\u003cp\u003efeldspar\u003c\/p\u003e\n\u003cp\u003eLapis lazuli\u003c\/p\u003e\n\u003cp\u003eMalachite, Microline, Moissanite, Moldavite\u003c\/p\u003e\n\u003cp\u003eObsidian, Oligoclase feldspar\u003c\/p\u003e\n\u003cp\u003ePearl, Peridot, Plastic, Pyrope garnet\u003c\/p\u003e\n\u003cp\u003eQuartz\u003c\/p\u003e\n\u003cp\u003eRhodochrosite, Rhodolite garnet, Rhodonite\u003c\/p\u003e\n\u003cp\u003eSapphire, Scapolite, Serpentine, Shell, Sinhalite, Sodalite, Spessartite garnet, Sphene, Spinel, Spodumene ,Strontium titanate, Synthetic emerald, Synthetic rutile, Synthetic spinel\u003c\/p\u003e\n\u003cp\u003eTL grossularite garnet, Turquoise\u003c\/p\u003e\n\u003cp\u003eVerdite\u003c\/p\u003e\n\u003cp\u003eY.A.G.\u003c\/p\u003e\n\u003cp\u003eZircon (high), Zircon (low), Zircon (medium), Zoisite\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759781167295,"sku":"DG-PRESID","price":339.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/dg-presid.jpg?v=1630148940"},{"product_id":"standard-presidium-electronic-gem-tester-model-pgt-ii-gemtest-p2","title":"Standard Electronic Gem Tester (Presidium PGT II)","description":"\u003ch2\u003eDETAILS\u003c\/h2\u003e\n\u003cp\u003eThermal meter, tests for 17 common groups of gemstones (about 40 varieties), enlarge the product picture to see the scale in detail.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eWorks with any stone, loose or mounted in jewellery, even uncut stones. The only condition is that the stone (and tester) must be at room temperature.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/pgt_ii_v2.4_user_handbook_eng.pdf\" target=\"_blank\"\u003eInstruction manual\u003c\/a\u003e (pdf download)\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/youtu.be\/NOCbzouNOdo\" rel=\"noopener\" target=\"_blank\"\u003eVideo\u003c\/a\u003e\u003ca href=\"https:\/\/youtu.be\/NOCbzouNOdo\"\u003e\u003c\/a\u003e (youtube - demonstration) \u003ca href=\"https:\/\/www.youtube.com\/watch?v=SvSCXrJuv5o\"\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.youtube.com\/watch?v=NOCbzouNOdo\" rel=\"noopener\" target=\"_blank\"\u003eVideo\u003c\/a\u003e (youtube - calibration - for serial numbers PTG111425 and after. \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-diamonds-gemstones\/a-lot-about-electronic-gem-testers\"\u003eGuide to buying electronic gem testers\u003c\/a\u003e (web page)\u003c\/p\u003e\n\u003cp\u003eIncludes heavy duty nylon carrying case and a PPR3 battery. Also power supply for mains (has a 2-pin plug so we included a 2-pin adaptor) - note, it is not a battery charger!\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGuarantee: 1 year.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cspan\u003e6 Videos\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe title=\"Presidium Gem Tester II (PGT II) - Intro \u0026amp; Powering on\" src=\"https:\/\/www.youtube.com\/embed\/SvSCXrJuv5o?list=PLcQfT4ta0DOciKCMeVqGTUCC6Lvvnn63r\" height=\"720\" width=\"1280\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eAccessories\u003c\/h2\u003e\n\u003cp\u003eIncluded:\u003c\/p\u003e\n\u003cp\u003eStrong nylon carrying pouch\u003c\/p\u003e\n\u003cp\u003ePP3 Battery\u003c\/p\u003e\n\u003ch2\u003eDisclaimer\u003c\/h2\u003e\n\u003cp\u003eAll testers  must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. Nothing is 100% accurate, you must understand the limitations of any tester you buy. We also suggest you regularly test known samples to check for any obvious faults. Full support given for items you buy from QUICKTEST.\u003c\/p\u003e\n\u003ch2\u003eAlternatives\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eFor a summary of all diamond and gem testers see the \u003ca href=\"\/testing-diamonds-gemstones\/diamond-tester-comparison-chart\"\u003e\u003cem\u003eComparison Chart\u003c\/em\u003e\u003c\/a\u003e, or see a more detailed explanation of what the various types of tester can (and can't) detect at \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/a-lot-about-electronic-gem-testers\"\u003eElectronic Gem Testers\u003c\/a\u003e.  If you specifically need to test diamonds, consider a diamond tester, they are more finely-tuned for testing diamonds, see \u003c\/span\u003e\u003cspan\u003eour \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/diamond-tester-comparison-chart\"\u003eGuide to Buying Diamond Testers\u003c\/a\u003e. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e[3] The probe \/ analogue meter: 17 stones; the digital meter: 40 stones.\u003c\/p\u003e\n\u003cp\u003e[4] Skill and practice is required to use an optical refractometer, instructions are not included, see any textbook about gemmology…or the internet.  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759783493823,"sku":"GEMTEST-P2","price":269.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/gemtest-p2-4.jpg?v=1629281219"},{"product_id":"presidium-duo-gem-tester-model-pdts7-gemtest-duo-ii","title":"Duo gem tester (Presidium PDT-II)","description":"\u003ch2\u003eSummary\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eBench model. A dual tester with both thermal meter and reflectivity meter.\u003c\/p\u003e\n\u003cp\u003ePlace the probe on the stone to operate analogue meter (the thermal meter, see detail in the extra pictures).\u003c\/p\u003e\n\u003cp\u003ePlace the stone over the sensor (even if it's in jewellery) to operate the digital meter (the reflectivity meter). \u003c\/p\u003e\n\u003cp\u003eYou don't \u003cem\u003ehave\u003c\/em\u003e to use both systems, you can choose one or the other.\u003c\/p\u003e\n\u003cp\u003eIncludes heavy duty nylon carrying case and a PPR3 battery. Also power supply for mains (has a 2-pin plug so we included a 2-pin adaptor) - note, it is not a battery charger!\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGuarantee: 1 year\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca rel=\"noopener\" href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/user_handbook_pdt_ii_en.pdf\" target=\"_blank\"\u003eInstruction manual\u003c\/a\u003e\u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/user_handbook_pdt_ii_en.pdf\"\u003e\u003c\/a\u003e (pdf download)\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/refractive-index-chart_pdt_ii.pdf\" rel=\"noopener\" target=\"_blank\"\u003eRefractive index chart\u003c\/a\u003e\u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/refractive-index-chart_pdt_ii.pdf\"\u003e\u003c\/a\u003e (pdf download) - for 75 common gemstones\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-diamonds-gemstones\/a-lot-about-electronic-gem-testers\"\u003eGuide to buying electronic gem testers\u003c\/a\u003e (web page)\u003c\/p\u003e\n\u003ch2\u003eVideo\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe title=\"Presidium Duo Tester II (PDT II) - Calibration\" src=\"https:\/\/www.youtube.com\/embed\/OyD0v9UNb-o\" height=\"410\" width=\"729\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eThe \u003cstrong\u003ethermal meter \u003c\/strong\u003eworks with any stone, loose or mounted in jewellery, even uncut stones. The only condition is that the stone (and tester) must be at room temperature. It is the same as the basic Presidium model (thermal meter only), \u003cspan\u003e it tests for 17 common groups of gemstones (about 40 varieties),  enlarge the product picture to see the scale in detail. \u003c\/span\u003e The \u003cstrong\u003ereflectivity meter\u003cem\u003e \u003c\/em\u003e\u003c\/strong\u003e\u003cem\u003e\u003c\/em\u003eworks on loose (not mounted) stones with a perfectly flat, perfectly polished surface, than can be rested over the sensor, it is not affected by temperature. \u003c\/p\u003e\n\u003ch2\u003eDisclaimer\u003c\/h2\u003e\n\u003cp\u003eAll testers  must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. Nothing is 100% accurate, you must understand the limitations of any tester you buy. We also suggest you regularly test known samples to check for any obvious faults. Full support given for items you buy from QUICKTEST.\u003c\/p\u003e\n\u003ch2\u003eAlternatives\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eFor a summary of all diamond and gem testers see the \u003ca href=\"\/testing-diamonds-gemstones\/diamond-tester-comparison-chart\"\u003e\u003cem\u003eComparison Chart\u003c\/em\u003e\u003c\/a\u003e, or see a more detailed explanation of what the various types of tester can (and can't) detect at \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/a-lot-about-electronic-gem-testers\"\u003eElectronic Gem Testers\u003c\/a\u003e.  If you specifically need to test diamonds, consider a diamond tester, they are more finely-tuned for testing diamonds, see \u003c\/span\u003e\u003cspan\u003eour \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/diamond-tester-comparison-chart\"\u003eGuide to Buying Diamond Testers\u003c\/a\u003e. \u003c\/span\u003e\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759783690431,"sku":"GEMTEST-DUO-II","price":375.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/gemtest-duo-II_5of8.jpg?v=1629962436"},{"product_id":"handheld-presidium-gem-tester-3x-aaa-batt-model-pgi-gemtest-pgi","title":"Handheld presidium gem tester +3x AAA batt (model PGI)","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eHandheld model. The first gem tester that is truly pocket-size, with the finest probe tip, will test stones down to 2pts in size.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eWorks on any stone, loose or mounted, even uncut. \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/userhandbook_pgi_2020_en.pdf\" rel=\"noopener\" target=\"_blank\"\u003eInstruction manual\u003c\/a\u003e\u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/userhandbook_pgi_2020_en.pdf\"\u003e\u003c\/a\u003e (pdf)\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/youtu.be\/aFIFpvp9_AE\" rel=\"noopener\" target=\"_blank\"\u003eVideo\u003c\/a\u003e\u003ca href=\"https:\/\/youtu.be\/aFIFpvp9_AE\"\u003e\u003c\/a\u003e (youtube)\u003c\/p\u003e\n\u003ch2\u003eVideo\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe title=\"Presidium Gem Indicator (PGI) Performing a Test and Reading Results\" src=\"https:\/\/www.youtube.com\/embed\/aFIFpvp9_AE\" height=\"410\" width=\"729\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003e- replaceable probe (i.e. if you break it)\u003c\/p\u003e\n\u003cp\u003e- latest technology, this is the only tester of this sophistication that is pen-size, operated with one hand, slips into a pouch, truly pocket-size\u003c\/p\u003e\n\u003cp\u003e- super-fast warm-up time between tests, just 3 seconds\u003c\/p\u003e\n\u003cp\u003e- auto-power-off if not used for 10mns, battery indicator\u003c\/p\u003e\n\u003cp\u003e- takes 3 standard batteries (supplied) or can be powered from a USB cable (not supplied). \u003c\/p\u003e\n\u003cp\u003e- will give an indication on 31 different gemstones:\u003c\/p\u003e\n\u003cp\u003eGlass\u003c\/p\u003e\n\u003cp\u003eBeryl group: Aquamarine, Emerald, Goshenite, Helidor, Morganite.\u003c\/p\u003e\n\u003cp\u003eTanzanite.\u003c\/p\u003e\n\u003cp\u003eJade (Nephrite)\u003c\/p\u003e\n\u003cp\u003eJade (Jadite)\u003c\/p\u003e\n\u003cp\u003ePeridot\u003c\/p\u003e\n\u003cp\u003eTourmaline group: Paraiba, Rubellite, Tourmaline\u003c\/p\u003e\n\u003cp\u003eGarnet (Grossular-Andralite group): Demantoid garnet, Hessonite, Tsavorite\u003c\/p\u003e\n\u003cp\u003eQuartz group: Chrysophrase, Amethyst, Adventurine, Citrine, Quartz\u003c\/p\u003e\n\u003cp\u003eSpinel\u003c\/p\u003e\n\u003cp\u003eChrysoberyl\u003c\/p\u003e\n\u003cp\u003eTopaz\u003c\/p\u003e\n\u003cp\u003eCorundum group: Ruby, Sapphire\u003c\/p\u003e\n\u003cp\u003eDiamond\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eNOTE:\u003c\/strong\u003e there is overlap between readings (\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/files\/gemtest-pgi-chart-large.jpg\"\u003esee our chart\u003c\/a\u003e), this means the display will usually give a list of 2 or 3 or 4 stones; you can narrow this down by entering its colour - but you \u003cem\u003ewill\u003c\/em\u003e end up with more than one possible stone, and you then have to decide which one it is.  \u003c\/p\u003e\n\u003ch2\u003eAccesories\u003c\/h2\u003e\n\u003cp\u003eIncluded:\u003c\/p\u003e\n\u003cp\u003eStrong nylon carrying pouch\u003c\/p\u003e\n\u003cp\u003eUSB cable (connects to any computer\/mobile device \/ USB-mains adaptor). \u003c\/p\u003e\n\u003ch2\u003eDisclaimer\u003c\/h2\u003e\n\u003cp\u003eAll testers  must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. Nothing is 100% accurate, you must understand the limitations of any tester you buy. We also suggest you regularly test known samples to check for any obvious faults. Full support given for items you buy from QUICKTEST.\u003c\/p\u003e\n\u003ch2\u003eAlternatives\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eFor a summary of all diamond and gem testers see the \u003ca href=\"\/testing-diamonds-gemstones\/diamond-tester-comparison-chart\"\u003e\u003cem\u003eComparison Chart\u003c\/em\u003e\u003c\/a\u003e, or see a more detailed explanation of what the various types of tester can (and can't) detect at \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/a-lot-about-electronic-gem-testers\"\u003eElectronic Gem Testers\u003c\/a\u003e.  If you specifically need to test diamonds, consider a diamond tester, they are more finely-tuned for testing diamonds, see \u003c\/span\u003e\u003cspan\u003eour \u003ca href=\"\/blogs\/testing-diamonds-gemstones\/diamond-tester-comparison-chart\"\u003eGuide to Buying Diamond Testers\u003c\/a\u003e. \u003c\/span\u003e\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759784083647,"sku":"GEMTEST-PGI","price":319.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/gemtest-pgi-2.jpg?v=1630585600"},{"product_id":"digital-refractometer-by-presidium-model-prim-ii-refract-digi-presid","title":"Digital refractometer by Presidium (model Prim II)","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eMade by Presidium, the leading manufacturers of gem testing equipment.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThere is downloadable software to connect it to your computer. The reading is then displayed along with a list of stones that match the reading, \u003cem\u003eand\u003c\/em\u003e you can click on each stone to see more information (constants). This saves time looking up charts.\u003c\/p\u003e\n\u003cp\u003eComes with a USB cable (connects to any computer\/mobile device \/ USB-mains adaptor). \u003c\/p\u003e\n\u003cp\u003eWorks with loose stones and also stones mounted in small items of jewellery.\u003c\/p\u003e\n\u003cp\u003eUSES:\u003c\/p\u003e\n\u003cp\u003e- to confirm stones are as described by your supplier\u003c\/p\u003e\n\u003cp\u003e- to show a customer the reading, when you already know what the stone is and just need to 'prove' it\u003c\/p\u003e\n\u003cp\u003e- to sort parcels of stones to see which look 'interesting' and worthy of further investigation, and then...\u003c\/p\u003e\n\u003cp\u003e...to narrow the possibilities down to a handful of stones (\u003cem\u003esometimes\u003c\/em\u003e just 1 or 2) so that you can carry out further investigations.\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/userhandbook_prim_ii_en.pdf\" rel=\"noopener\" target=\"_blank\"\u003eInstruction manual\u003c\/a\u003e\u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/userhandbook_prim_ii_en.pdf\"\u003e\u003c\/a\u003e (pdf)\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/prim-ii-ri-chart-june-2021_1.pdf\" rel=\"noopener\" target=\"_blank\"\u003eRefractive Index chart\u003c\/a\u003e (pdf)\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/youtu.be\/t_Emt015_Vo\"\u003eVideo\u003c\/a\u003e (youtube)\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-diamonds-gemstones\/a-lot-about-electronic-gem-testers\"\u003eGuide to buying electronic gem testers\u003c\/a\u003e (web page)\u003c\/p\u003e\n\u003ch2\u003eVideo\u003c\/h2\u003e\n\u003cp\u003e\u003ciframe width=\"729\" height=\"410\" src=\"https:\/\/www.youtube.com\/embed\/t_Emt015_Vo\" title=\"Presidium Refractive Index Meter II Software\"\u003e\u003c\/iframe\u003e\u003c\/p\u003e\n\u003ch2\u003ePros and Cons\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAdvantages, as an electronic tester:\u003c\/strong\u003e\u003ccr\u003e- instant reading and no waiting time between tests\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003e- tiny sensor for testing stones down to 3mm diameter\u003c\/p\u003e\n\u003cp\u003e- pull-out refractive index chart as a quick-reference for diamond \/ diamond simulants (including Moissanite) \u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e- built-in 8-piece gemstone holder (sets of sample gems are an optional extra)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e- use the downloadable software from Presidium (available \u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/node_fields\/field_softwaredownloads\/202305\/prim_ii_v2.0.2-w-23_windows.zip\" rel=\"noopener\" target=\"_blank\"\u003efor Windows\u003c\/a\u003e or \u003ca href=\"https:\/\/www.presidium.com.sg\/download-file\/sites\/files\/presidium\/node_fields\/field_softwaredownloads_mac\/202305\/prim_ii_v2.0.2-m-23_macos.zip\" rel=\"noopener\" target=\"_blank\"\u003efor Mac\u003c\/a\u003e), see all the stones with the same refractive index, and for each stone you get to \u003cem\u003elots\u003c\/em\u003e of additional information, to help you decide which one it is.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisadvantages, as an electronic tester:\u003c\/strong\u003e\u003ccr\u003e- although mounted stones can be tested, the item of jewellery must be placed over the sensor so that the top (table) of the stone covers the hole, and this is not possible with large or 'lumpy' items of jewellery\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003e- will test loose stones only, not mounted stones\u003c\/p\u003e\n\u003cp\u003e- the surface of the stone must be perfectly flat, perfectly polished and perfectly clean.\u003c\/p\u003e\n\u003cp\u003e- it is a sensitive piece of laboratory equipment, it must be kept clean and dry, the sensor must be kept dust-free, it must not be bumped in and out of bags or used on damp outside market stalls\u003c\/p\u003e\n\u003cp\u003e- as with all testers, there are many stones with the same, or similar, readings\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eAdvantages over an optical refractometer:\u003c\/strong\u003e\u003ccr\u003e- gives higher readings (1.00 to 3.00) and this enables it to test for diamond and for simulants such as Moissanite\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003e- no contact fluid required\u003c\/p\u003e\n\u003cp\u003e- fast and easy to use, easy-to-read digital display\u003c\/p\u003e\n\u003cp\u003e- wider range of readings\u003c\/p\u003e\n\u003cp\u003e- connects to software to further identify the stones.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDisadvantages over an optical refractometer:\u003c\/strong\u003e\u003ccr\u003e- it's not as versatile as an optical refractometer, you only get one reading for each stone (technical: you can't measure the birefringence). \u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003e- this Presidium \"Digital refractometer\" \u003cem\u003edoes\u003c\/em\u003e measure refractive index but, technically, it is not a refractometer, it is a reflectivity meter that uses a clever computer program to calculate refractive index. You probably don't need to know that!  All you need to know is (if you are familiar with the optical refractometer) it does not show double refraction and so, for the expert, is not as flexible as an optical refractometer. \u003c\/p\u003e\n\u003ch2\u003eSpecifications\u003c\/h2\u003e\n\u003cp\u003eRange of measurement, 1.000 to 3.000\u003c\/p\u003e\n\u003cp\u003ePower: one 9 Volt battery + USB (cable supplied)\u003c\/p\u003e\n\u003cp\u003eSize 5 X 3 X 2 inches (125X 75 X 50mm)\u003c\/p\u003e\n\u003cp\u003eItem weight 150g. \u003c\/p\u003e\n\u003ch2\u003eAlternative gem testers\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003ePlease note, none of these testers will distinguish natural stones from synthetic stones. \"Synthetic\" is a scientific term meaning 'made by man in a factory\/laboratory to the same formula found in nature', the two are usually indistinguishable. \u003c\/p\u003e\n\u003ctable width=\"627\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 99px;\"\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests\u003cspan\u003e \u003c\/span\u003e\u003cem\u003emounted\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003estones [1]\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests  Diamond\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests  Moissanite\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests\u003cbr\u003eRuby \/ \u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eOther stones\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 120px;\"\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/handheld-presidium-gem-tester-3x-aaa-batt-model-pgi-gemtest-pgi\"\u003eHandheld presidium gem tester (GEMTEST-PGI)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003eShows up as diamond\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e31 stones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 99px;\"\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/standard-presidium-electronic-gem-tester-model-pgt-ii-gemtest-p2\"\u003eStandard Presidium (GEMTEST-P2)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eShows up as diamond\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e17 stones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 99px;\"\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/presidium-duo-gem-tester-model-pdts7-gemtest-duo-ii\"\u003ePresidium Duo gem tester (GEMTEST-DUO-II)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e[2]\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e[3]\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 99px;\"\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/refractometer-refract-l\"\u003eRefractometer (optical not electronic) (Refract-L)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✘\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✘\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✘\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003eHundreds of stones [4]\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e[1] All testers test loose stones but not all can test mounted (set in jewellery) stones.\u003c\/p\u003e\n\u003cp\u003e[2] The probe \/ analogue meter will test mounted stones, the digital meter will only test loose stones.\u003c\/p\u003e\n\u003cp\u003e[3] The probe \/ analogue meter: 17 stones; the digital meter: 40 stones.\u003c\/p\u003e\n\u003cp\u003e[4] Skill and practice is required to use an optical refractometer, instructions are not included, see any textbook about gemmology…or the internet.   \u003c\/p\u003e\n\u003ch2\u003eDisclaimer\u003c\/h2\u003e\n\u003cp\u003eAll testers  must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. Nothing is 100% accurate, you must understand the limitations of any tester you buy. We also suggest you regularly test known samples to check for any obvious faults. Full support given for items you buy from QUICKTEST.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759784280255,"sku":"REFRACT-DIGI-PRESID","price":285.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/refract-digi-presid-1.jpg?v=1630148955"},{"product_id":"probe-for-presidium-gemtestp2-and-some-gemtestduo-probe-gemtest-new","title":"Presidium standard+duo probe, new (after oct 2020) models","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eThere are two types of probe depending on whether you bought your tester before or after October 2020, please check carefully that you are buying the right one. \u003c\/p\u003e\n\u003cp\u003eThis probe has the new-style connector.\u003c\/p\u003e\n\u003cp\u003eIt fits the following Presidium electronic gem testers:\u003c\/p\u003e\n\u003cp\u003e- our ref. Gemtest-P2\u003cbr\u003e- Presidium's ref. PGTII\u003c\/p\u003e\n\u003cp\u003eand also\u003c\/p\u003e\n\u003cp\u003ethe NEWER versions (\u003ca href=\"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/gemtest-p2-4_1024x1024@2x.jpg\"\u003ethis one\u003c\/a\u003e) of:\u003c\/p\u003e\n\u003cp\u003e- our ref. gemtest-duo\u003cbr\u003e- Presidium's ref. PDT-S7\u003c\/p\u003e\n\u003cp\u003eNot sure which you have?\u003c\/p\u003e\n\u003cp\u003eSee our \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/files\/Presidium-probes-for-old-models.pdf?v=1621507645\"\u003einformation sheet\u003c\/a\u003e.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759784444095,"sku":"PROBE-GEMTESTP2","price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/gemtest-duo-II_6of7.jpg?v=1658131586"},{"product_id":"probe-for-presidium-gemtestp-and-some-gemtestduo-probe-gemtest-old","title":"Presidium standard+duo probe, old (before oct 2020) models","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eAvailable to special order only \u003c\/strong\u003e(which means it cannot be returned), please allow 3 to 5 weeks for delivery.\u003c\/p\u003e\n\u003cp\u003eThis probe fits very old (pre-2020) Presidium gem testers:\u003c\/p\u003e\n\u003cp\u003eo\u003cspan style=\"font-size: 0.875rem;\"\u003eur ref. Gemtest-P, \u003c\/span\u003ePresidium's ref. PGT\u003cbr\u003eor\u003cbr\u003eour ref. gemtest-duo, Presidium's ref. PDT-S7\u003c\/p\u003e\n\u003cp\u003eThese models are long-since discontinued, repairs or support not available. \u003c\/p\u003e\n\u003cp\u003eNot sure which you have?\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eSee our \u003c\/span\u003e\u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/files\/Presidium-probes-for-old-models.pdf?v=1621507645\"\u003einformation sheet\u003c\/a\u003e\u003cspan\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759785099455,"sku":"PROBE-GEMTESTP","price":79.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/gemtest-duo-II_6of7_d86d9181-9cb8-4895-b8e2-0c237ff0b685.jpg?v=1658131660"},{"product_id":"probe-for-gemtestpgi-probe-gemtest-pgi","title":"Gemtest-PGI (probe)","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eSpare probe for Presidium electronic gem tester:\u003c\/p\u003e\n\u003cp\u003e- Product ref. Gemtest-PGI\u003c\/p\u003e\n\u003cp\u003ePlease check that this is the model you have.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759785230527,"sku":"PROBE-GEMTEST-PGI","price":59.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/probe-gemtest-pgi-1.jpg?v=1630585625"},{"product_id":"calibration-discs-for-gemtestpgi-calib-pgi","title":"Calibration discs for Gemtest-PGI","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eSpare calibration discs for GEMTEST-PGI.\u003c\/p\u003e\n\u003cp\u003eThe Gemtest-PGI must be calibrated regularly to ensure it is working properly, especially if the temperature changes. This is not difficult: you place the probe on of the circles and press a button, then place it on the other circle and press a button. The only problem is: if  you've lost the calibration discs. \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759786016959,"sku":"CALIB-PGI","price":39.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/calib-pgi-1.jpg?v=1629281233"},{"product_id":"set-of-sample-diamond-imitations-stones","title":"Set of sample diamond simulants","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003eThis is a set of 'difficult' stones that are confused with diamond, not so much because they look like diamond to a jewellery expert, but because they are hard to measure on  electronic testers, you need to see exactly what reading your particular tester gives on each of:\u003c\/p\u003e\n\u003cp\u003eY.A.G\u003cbr\u003eG.G.G\u003cbr\u003eSynthetic sapphire\u003cbr\u003eSynthetic spinel\u003cbr\u003eZircon\u003cbr\u003eStrontium titanate\u003cbr\u003eCubic zirconia\u003c\/p\u003e\n\u003cp\u003e...and then you can see how that reading matches your unknown stone \u003c\/p\u003e\n\u003cp\u003eEach stone rests in its clearly-labelled indentation, but the stones themselves are not labelled. If you drop them, you won't know which is which. We could work it out. But not easily. We might have to send some of them to a gemmologist. If you return these to us (whether because you've mixed them up, or simply because you have decided you don't like them) - there will be a £50.00 charge to sort them out. \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759786213567,"sku":"STONES","price":222.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/Types-of-Diamond-Simulants.jpg?v=1630148963"},{"product_id":"dichroscope-dicrho","title":"Dichroscope, tube","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eA tube 50mm long X 12mm dia.\u003c\/p\u003e\n\u003cp\u003eIf a stone is dichroic (transmits two colours at once) you will see the two distinct colours when viewed through a dichroscope.\u003c\/p\u003e\n\u003cp\u003eYou can see the two colours by viewing the stone from different directions, but this often impossible if the stone is set in jewellery, it's easier to use a dichroscope. \u003c\/p\u003e\n\u003ch2\u003eIs it easy to use?\u003c\/h2\u003e\n\u003cp\u003eYes. \u003c\/p\u003e\n\u003ch2\u003eLimitations \u0026amp; Disclaimer\u003c\/h2\u003e\n\u003cp\u003eFor coloured stones only.\u003c\/p\u003e\n\u003cp\u003eThis is a standard gem tester used by gemmologists, it does not come with instructions, you are expected to know how to use it (a bit like a bicycle, it does not come with instructions telling you how to ride it).\u003c\/p\u003e\n\u003cp\u003eAll equipment and materials must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. It is your responsibility to regularly check equipment against known samples, to ensure that it is working correctly.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759787262143,"sku":"DICRHO","price":42.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/dichro-1.jpg?v=1630149033"},{"product_id":"spectroscope-spectra","title":"Spectroscope","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eSpectroscope (diffraction grating type), 50mm long X 12mm dia.\u003c\/p\u003e\n\u003cp\u003eYou view the light from coloured stones, you see a spectrum of colour (rainbow) interrupted with black (or white) lines*. You don't take any measurements (this is not a  spectrometer), you just have to recognise the patterns of lines (see the example in the picture).\u003c\/p\u003e\n\u003cp\u003eIf you don't have any gemstones to hand, here's some fun things to do with a spectroscope. Point it at the sky and see the lines that correspond to hydrogen burning in the sun and oxygen being absorbed by the atmosphere. Point it at a fluorescent light and see the dozens of lines caused by the gases burning inside the tube. Shine a torch through your finger, see the pattern of lines caused by iron in your blood.\u003c\/p\u003e\n\u003cp\u003e* This is because some elements (transitional elements) absorb specific wavelengths (colours) of light, appearing as black lines; some re- transmit specific wavelengths, appearing as white lines. These patterns of lines give clues as the chemical composition of the stone. \u003c\/p\u003e\n\u003ch2\u003eIs it easy to use?\u003c\/h2\u003e\n\u003cp\u003eNo. It can be fiddly, holding the stone, a light (e.g. small torch) and the spectroscope, all at the correct angle to view the colour.\u003c\/p\u003e\n\u003cp\u003eIf you like colours and are good at recognising patterns of lines, you'll love this tester. Get to recognise the patterns of lines that indicates chromium and iron, instantly identify blue manmade stones (cobalt-blue), see the myriad of lines in some zircon caused by radioactive decay. But if you have no sense of colour whatsoever (like me!) it will be hard work.  \u003c\/p\u003e\n\u003ch2\u003eLimitations\u003c\/h2\u003e\n\u003cp\u003eIt works by looking at the \u003cem\u003ecolour\u003c\/em\u003e of a stone, so the stone must \u003cem\u003ehave\u003c\/em\u003e colour, the stronger the colour the clearer the spectrum. \u003c\/p\u003e\n\u003cp\u003eUsually you would shine a light through a transparent stone, but you \u003cem\u003ecan\u003c\/em\u003e examine opaque stones by 'bouncing' the light off the surface of the stone into the spectroscope, but this is difficult, especially if the stone doesn't have a strong colour.\u003c\/p\u003e\n\u003cp\u003eThis is a standard gem tester used by gemmologists, it does not come with instructions, you are expected to know how to use it.  However, if you want to know what you will see \u003ca href=\"http:\/\/www.gemlab.co.uk\/Spectra%20Database.html\" target=\"_blank\"\u003eclick here\u003c\/a\u003e for a link to a website with hundreds of examples you can download.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759788769471,"sku":"SPECTRA","price":39.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/spectra-1.jpg?v=1623671440"},{"product_id":"chelsea-filter-chfilt","title":"Chelsea Filter","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eThe original Chelsea Filter, as developed at the Chelsea College of Science and Technology in 1934.  Do not confuse this with the many copies.\u003c\/p\u003e\n\u003ch2\u003eDetail\u003c\/h2\u003e\n\u003cp\u003eMany stones appear to change colour when viewed through the filter. Originally designed for detecting synthetic emeralds, nowadays the Chelsea filter is an invaluable aid to identifying many other gemstones.\u003c\/p\u003e\n\u003cp\u003eIt can give an indication that you have an emeralds and aquamarines, though not a guarantee, since there is considerable variation in their chemical compositions (e.g. the amount of chromium that gives the green colour and the amount of iron that 'dampens' the effect through the filter).\u003c\/p\u003e\n\u003cp\u003eIt gives a very clear and spectacular result on blue stones coloured with cobalt. Since cobalt doesn't colour stones blue in nature, this is a sure-sign that you have a manmade stone (e.g. synthetic spinel) or glass.\u003c\/p\u003e\n\u003cp\u003eWith skill, it helps identify dozens of other stones. It's particularly useful when you have to sort large parcels of stones into 'probables' - then you have clues as to which tests to carry out next. \u003c\/p\u003e\n\u003ch2\u003eIs it easy to use?\u003c\/h2\u003e\n\u003cp\u003eUSING it is very easy indeed. Shine a light (e.g. our pen-torch) on the stone, hold the filter close to your eye, view any colour change. You don't even have to hold the stone close to the filter (only the filter has to be close to your eye) so you can examine stones in museum showcases. \u003c\/p\u003e\n\u003cp\u003eInstructions are included.\u003c\/p\u003e\n\u003ch2\u003eLimitations \u0026amp; Disclaimer\u003c\/h2\u003e\n\u003cp\u003eThere is an instruction sheet supplied with the filter. However, in common with all gem testers, it does not provide an instant, easy and guaranteed identification of gemstones (the only 'easy' one is detecting cobalt-blue stones, which \u003cem\u003ewill\u003c\/em\u003e be synthetic…or glass). \u003c\/p\u003e\n\u003cp\u003eAll equipment and materials must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. It is your responsibility to regularly check equipment against known samples, to ensure that it is working correctly.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759789785279,"sku":"CHFILT","price":29.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/chfilt-1.jpg?v=1623671271"},{"product_id":"refractometer-refract-l","title":"Refractometer","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eFor the gemmologist the refractometer is the most important gem tester after a loupe. It measures refractive index (to what extent light is bent as it passes through the gemstone).\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis product is intended for gemmologists (or those about to study gemmology) - instructions are not included.\u003c\/em\u003e  \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGuarantee: 1 year.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDetail\u003c\/h2\u003e\n\u003cp\u003eApprox. 5 X 3 X 2 inches\u003c\/p\u003e\n\u003cp\u003eBuilt-in monochromatic LED light\u003c\/p\u003e\n\u003cp\u003eRange: 1.30 to 1.81\u003c\/p\u003e\n\u003cp\u003ePossible error in readings: +\/- 0.01\u003c\/p\u003e\n\u003cp\u003eTest plate made of high-refractive glass\u003c\/p\u003e\n\u003cp\u003ePower: Takes 3 size LR44 batteries (included).\u003c\/p\u003e\n\u003cp\u003eBottle of contact fluid included. \u003c\/p\u003e\n\u003ch2\u003eIs it easy to use?\u003c\/h2\u003e\n\u003cp\u003eBASIC OPERATION: Rest the flat polished surface of the stone on the test plate, and through the viewfinder you see a scale, part of which will be light and part of which will be dark. In between the light and dark is the 'shadow edge' (which will be quite sharp, due the monochromatic light) - this marks a reading on a scale. It's a little slow and fiddly but not too difficult to master.\u003c\/p\u003e\n\u003cp\u003eADVANCED OPERATION: Not only do you get a reading, but often you will see two shadow edges, indicating a doubly refractive stone (which, itself, is diagnostic), AND advanced users can glean further information by rotating the stone to see if either or both of the shadow edges move, and by taking minimum and maximum readings for each. \u003c\/p\u003e\n\u003ch2\u003eAlternative gem testers\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003ePlease note, none of these testers will distinguish natural stones from synthetic stones. \"Synthetic\" is a scientific term meaning 'made by man in a factory\/laboratory to the same formula found in nature', the two are usually indistinguishable. \u003c\/p\u003e\n\u003ctable width=\"627\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 99px;\"\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests\u003cspan\u003e \u003c\/span\u003e\u003cem\u003emounted\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003estones [1]\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests  Diamond\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests  Moissanite\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests\u003cbr\u003eRuby \/ \u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eOther stones\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 120px;\"\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/handheld-presidium-gem-tester-3x-aaa-batt-model-pgi-gemtest-pgi\"\u003eHandheld presidium gem tester (GEMTEST-PGI)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003eShows up as diamond\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e31 stones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 99px;\"\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/standard-presidium-electronic-gem-tester-model-pgt-ii-gemtest-p2\"\u003eStandard Presidium (GEMTEST-P2)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eShows up as diamond\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e17 stones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 99px;\"\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/presidium-duo-gem-tester-model-pdts7-gemtest-duo-ii\"\u003ePresidium Duo gem tester (GEMTEST-DUO-II)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e[2]\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e[3]\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 120px;\"\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/digital-refractometer-by-presidium-model-prim-ii-refract-digi-presid\"\u003eDigital refractometer by Presidium (REFRACT-DIGI-PRESID)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✘\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e55 stones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e[1] All testers test loose stones but not all can test mounted (set in jewellery) stones.\u003c\/p\u003e\n\u003cp\u003e[2] The probe \/ analogue meter will test mounted stones, the digital meter will only test loose stones.\u003c\/p\u003e\n\u003cp\u003e[3] The probe \/ analogue meter: 17 stones; the digital meter: 40 stones.\u003c\/p\u003e\n\u003cp\u003e[4] Skill and practice is required to use an optical refractometer, instructions are not included, see any textbook about gemmology…or the internet.   \u003c\/p\u003e\n\u003ch2\u003eLimitations\u003c\/h2\u003e\n\u003cp\u003eAlthough this is an 'easy' test because you end up with a number, and you look up the number on standard charts, you will soon discover that (as with all gem testers) there are many gemstones with the same (or overlapping) readings. A refractometer will help you narrow the possibilities to a handful (maybe one or two) stones, but it will not give an instant 100% guaranteed answer.\u003c\/p\u003e\n\u003cp\u003eSome stones are out of range for this machine (their refractive index is too high to be measured) including some garnets, diamonds and most diamond simulants including zircon and sphene. This cannot, therefore, be used as a diamond tester.\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759789916351,"sku":"REFRACT-L","price":195.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/refract-l-1.jpg?v=1629281241"},{"product_id":"refractometer-white-refract-l2","title":"Gem Refractometer white","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eFor the gemmologist the refractometer is the most important gem tester after a loupe. It measures refractive index (to what extent light is bent as it passes through the gemstone).\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eThis product is intended for gemmologists (or those about to study gemmology) - instructions are not included.\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eAdvanced model, has the advantages (over the standard model):\u003c\/p\u003e\n\u003cp\u003e- large eyepiece enables easy viewing of the measuring scale (\u003cem\u003emuch\u003c\/em\u003e easier than on a standard model!\u003c\/p\u003e\n\u003cp\u003e- USB power instead of batteries\u003c\/p\u003e\n\u003cp\u003e- the divisions on the scale are the same as the standard model but the \u003cem\u003eaccuracy\u003c\/em\u003e is better\u003c\/p\u003e\n\u003cp\u003e- the test-plate made of Cz (very expensive), it's harder than glass (less likely to get scratched); it also gives a wider range of reading, adding to the stones it will test - Spessartite garnet and YAG, and most Sphene. \u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGuarantee: 1 year.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDetail\u003c\/h2\u003e\n\u003cp\u003eSize: approx. 5.5 X 4 X 1.5 inches.\u003c\/p\u003e\n\u003cp\u003eBuilt-in monochromatic light\u003c\/p\u003e\n\u003cp\u003eRange: 1.35 to 1.85\u003c\/p\u003e\n\u003cp\u003ePossible error in readings: +\/- 0.005\u003c\/p\u003e\n\u003cp\u003eTest plate made of Cz (cubic Zirconia)\u003c\/p\u003e\n\u003cp\u003ePower: 2 standard AA batteries or USB (cable and mains adaptor supplied) .\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eBottle of contact fluid is included. \u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003ePolarising filter included.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eIs it easy to use?\u003c\/h2\u003e\n\u003cp\u003eA refractometer measures refraction (bending) of light as it passes through the gemstone (like poking a stick into clear water).\u003c\/p\u003e\n\u003cp\u003eBASIC OPERATION: Rest the flat polished surface of the stone on the test plate, and through the viewfinder you see a scale, part of which will be light and part of which will be dark. In between the light and dark is a sharp 'shadow edge' that marks a reading on a scale. It's a little slow and fiddly but not too difficult to master. This advanced model is more accurate than the standard model, and the divisions on the scale are clearer.\u003c\/p\u003e\n\u003cp\u003eADVANCED OPERATION: Not only do you get a reading, but often you will see two shadow edges, indicating a doubly refractive stone (which, itself, is diagnostic), AND advanced users can glean further information by rotating the stone to see if either or both of the shadow edges move, and by taking minimum and maximum readings for each. \u003c\/p\u003e\n\u003ch2\u003eLimitations\u003c\/h2\u003e\n\u003cp\u003eAlthough this is an 'easy' test because you end up with a number, and you look up the number on standard charts, you will soon discover that (as with all gem testers) there are many gemstones with the same (or overlapping) readings. A refractometer will help you narrow the possibilities to a handful (maybe one or two) stones, but it will not give a \"guaranteed\" answer.\u003c\/p\u003e\n\u003cp\u003eSome stones are out of range for this machine (their refractive index is too high to be measured) including some garnets, diamonds and most diamond simulants - though this advanced model \u003cem\u003ewill \u003c\/em\u003etest for sphene and most zircon (which the standard model cannot).\u003c\/p\u003e\n\u003cp\u003eSome stones have readings far too high for any refractometer, including diamond, Cz (cubic zirconia), GGG and Moissanite. A refractometer cannot be used as a diamond tester.\u003c\/p\u003e\n\u003ch2\u003eAlternative gem testers\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003ePlease note, none of these testers will distinguish natural stones from synthetic stones. \"Synthetic\" is a scientific term meaning 'made by man in a factory\/laboratory to the same formula found in nature', the two are usually indistinguishable. \u003c\/p\u003e\n\u003ctable width=\"627\"\u003e\n\u003ctbody\u003e\n\u003ctr style=\"height: 99px;\"\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003cstrong\u003eModel\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests\u003cspan\u003e \u003c\/span\u003e\u003cem\u003emounted\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003estones [1]\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests  Diamond\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests  Moissanite\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eTests\u003cbr\u003eRuby \/ \u003cbr\u003e\u003c\/strong\u003e\u003cstrong\u003eSapphire\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"text-align: center;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cstrong\u003eOther stones\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 120px;\"\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/handheld-presidium-gem-tester-3x-aaa-batt-model-pgi-gemtest-pgi\"\u003eHandheld presidium gem tester (GEMTEST-PGI)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003eShows up as diamond\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e31 stones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 99px;\"\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/standard-presidium-electronic-gem-tester-model-pgt-ii-gemtest-p2\"\u003eStandard Presidium (GEMTEST-P2)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e\u003cspan\u003eShows up as diamond\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e17 stones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 99px;\"\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/presidium-duo-gem-tester-model-pdts7-gemtest-duo-ii\"\u003ePresidium Duo gem tester (GEMTEST-DUO-II)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e[2]\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 99px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e[3]\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr style=\"height: 120px;\"\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: left;\"\u003e\u003ca href=\"https:\/\/online-store-web.shopifyapps.com\/products\/digital-refractometer-by-presidium-model-prim-ii-refract-digi-presid\"\u003eDigital refractometer by Presidium (REFRACT-DIGI-PRESID)\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✘\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e✔\u003c\/p\u003e\n\u003c\/td\u003e\n\u003ctd style=\"height: 120px;\"\u003e\n\u003cp style=\"text-align: center;\"\u003e55 stones\u003c\/p\u003e\n\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003cp\u003e\u003cbr\u003e[1] All testers test loose stones but not all can test mounted (set in jewellery) stones.\u003c\/p\u003e\n\u003cp\u003e[2] The probe \/ analogue meter will test mounted stones, the digital meter will only test loose stones.\u003c\/p\u003e\n\u003cp\u003e[3] The probe \/ analogue meter: 17 stones; the digital meter: 40 stones.\u003c\/p\u003e\n\u003cp\u003e[4] Skill and practice is required to use an optical refractometer, instructions are not included, see any textbook about gemmology…or the internet.  \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759790244031,"sku":"REFRACT-L2","price":299.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/refract-l2-1.jpg?v=1623671399"},{"product_id":"polariscope-handheld-with-builtin-light-polaris-l","title":"Polariscope, handheld, with built-in light","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eA tube 90mm tall X 35m diameter, it detects double refraction.\u003c\/p\u003e\n\u003cp\u003eArea to put the stone, 12mm diameter (OK for most stones and small rings).\u003c\/p\u003e\n\u003cp\u003eBuilt-in light.\u003c\/p\u003e\n\u003ch2\u003eDetail\u003c\/h2\u003e\n\u003cp\u003eThis instrument will show you if a gemstone is singly or doubly refractive. For instance, Moissanite is strongly doubly refractive, diamond is singly refractive. This is, therefore, a very cheap (if a little fiddly) method of distinguishing diamond from Moissanite.\u003c\/p\u003e\n\u003cp\u003eYou cannot, however, use this \u003cem data-mce-fragment=\"1\"\u003einstead\u003c\/em\u003e of a diamond tester because Cubic Zirconia , glass and plastics give the same reading as diamond.  \u003c\/p\u003e\n\u003cp\u003eAt a more advanced level: glass and plastics are singly refractive, crystalline gemstones are mostly doubly refractive, excluding the cubic system of crystals (which includes diamond and cubic zirconia). So knowing if a gemstone is singly or doubly refractive is diagnostic.\u003c\/p\u003e\n\u003cp\u003eIncluded: soft carry-case, built in light (takes two 2032 batteries, included) \u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eIs it easy to use?\u003c\/h2\u003e\n\u003cp\u003eA bit fiddly but reasonably easy. At the top and bottom of the tube are two filters (Polaroid discs), revolve the top filter until everything in the tube appears dark and place the stone on the platform in the middle. Now turn the stone so that it revolves through 360°. If it appears to turn light-and-dark it is doubly refractive, if it remains dark it is singly refractive.\u003c\/p\u003e\n\u003cp\u003eApart from the above, this item is not supplied with instructions, it is intended for gemmologists or those who are studying gemmology.  \u003c\/p\u003e\n\u003ch2\u003eLimitations\u003c\/h2\u003e\n\u003cp\u003eThe stone needs to be rotated on the platform. That's very easy with loose stones, but there isn't much room to fit stones mounted in jewellery, it has to fit onto the platform which is 12mm diameter.\u003c\/p\u003e\n\u003cp\u003eLight must be able to pass through the stone, not a problem with transparent stones, you'll have to use a torch to shine light through semi-transparent stones, you cannot test opaque stones.\u003c\/p\u003e\n\u003cp\u003eThis is a standard gem tester used by gemmologists, it does not come with instructions, you are expected to know how to use it (a bit like a bicycle, it does not come with instructions telling you how to ride it).\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759790997695,"sku":"POLARIS-L","price":37.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/polaris-l-1.jpg?v=1630673321"},{"product_id":"polariscope-mainspowered-polaris-mains","title":"Polariscope, mains-powered.","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eApprox. 7 X 6 X 5 inches, and the filter (\"platform\") 35mm diameter.\u003c\/p\u003e\n\u003cp\u003eLarge base, easily rotates. Stone-holder attaches to base for easy positioning of stone. \u003c\/p\u003e\n\u003cp\u003eBuilt-in light.\u003c\/p\u003e\n\u003cp\u003e\u003cspan\u003eGuarantee: 1 year.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDetail\u003c\/h2\u003e\n\u003cp\u003eThis instrument will show you if a gemstone is singly or doubly refractive. For instance, Moissanite is strongly doubly refractive, diamond is singly refractive. This is, therefore, a very cheap (if a little fiddly) method of distinguishing diamond from Moissanite.\u003c\/p\u003e\n\u003cp\u003eYou cannot, however, use this \u003cem\u003einstead\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eof a diamond tester because Cubic Zirconia , glass and plastics give the same reading as diamond (they are all singly refractive). \u003c\/p\u003e\n\u003cp\u003eAlso included is a conoscope to view a gemstone's interference pattern in order to determine its optic character (Uniaxial or biaxial) - but that is for the advanced user. \u003c\/p\u003e\n\u003ch2\u003eIs it easy to use?\u003c\/h2\u003e\n\u003cp\u003eIt's a a little fiddly but  not too difficult. At the top and bottom of the tube are two filters (Polaroid discs), revolve the top filter until everything in the tube appears dark and place the stone on the platform in the middle. Now turn the stone so that it revolves through 360°. If it appears to turn light-and-dark then light-and-dark in the 360° turn, it's doubly refractive.\u003c\/p\u003e\n\u003cp\u003eHowever, some stoneD exhibit this effect erratically (anomalous double refraction); some stones exhibit this effect only in certain directions (turn the stone sideways and test again).  So while a polariscope is a more reliable than most electronic testers at distinguishing Moissanite from diamond, care must be taken when observing the results - which is why I say, \"a bit fiddly\".  \u003c\/p\u003e\n\u003cp\u003eNOTE: this item is not supplied with instructions, it is intended for gemmologists or those who are studying gemmology.  \u003c\/p\u003e\n\u003ch2\u003eLimitations\u003c\/h2\u003e\n\u003cp\u003eMains-powered only, it does not take batteries.\u003c\/p\u003e\n\u003cp\u003eLight must be able to pass through the stone, not a problem with transparent stones, you'll have to use a torch to shine light through semi-transparent stones, you cannot test opaque stones.\u003c\/p\u003e\n\u003cp\u003eThis is a standard gem tester used by gemmologists, it does not come with instructions, you are expected to know how to use it (a bit like a bicycle, it does not come with instructions telling you how to ride it).\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759791227071,"sku":"POLARIS-MAINS","price":150.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/polaris-mains-1.jpg?v=1629281247"},{"product_id":"refractometer-fluid-refract-fluid","title":"Refractometer fluid","description":"\u003ch2\u003eDetails\u003c\/h2\u003e\n\u003cp\u003e10g bottle of refractometer fluid.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759791325375,"sku":"REFRACT-FLUID","price":47.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/refract-fluid-1.jpg?v=1623671392"},{"product_id":"hardness-tester-10-test-samples-hardness-2","title":"HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003e\u003cspan style=\"font-size: 0.875rem;\"\u003eSet of ten hardness testers.\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e8 hardness picks (\"pencils\") from No.2 to No.9.\u003c\/p\u003e\n\u003cp\u003e1 Glass plate (hardness 5.5)\u003c\/p\u003e\n\u003cp\u003e1 Brass plate (hardness 3.5)\u003c\/p\u003e\n\u003cp\u003eAlso\u003c\/p\u003e\n\u003cp\u003e1 streak plate (to test a mineral's streak colour)\u003c\/p\u003e\n\u003cp\u003e1 magnet\u003c\/p\u003e\n\u003cp\u003e1 polishing stone to keep the tips sharp\u003c\/p\u003e\n\u003cp\u003eEach 'pencil' has a tip of a different hardness from No.5 to No.9 on the Moe scale of hardness (see 'Further Information'). \u003c\/p\u003e\n\u003ch2\u003eIs it easy to use?\u003c\/h2\u003e\n\u003cp\u003eYes.\u003c\/p\u003e\n\u003cp\u003eSee which will scratch your sample and which will not. \u003c\/p\u003e\n\u003ch2\u003eLimitations\u003c\/h2\u003e\n\u003cp\u003eHardness varies from sample to sample, and it can also be different in different directions.\u003c\/p\u003e\n\u003cp\u003eThese are for testing minerals, e.g. out in the field. They are not suitable for use on cut gemstone (jewellery) - you scratch the stone, the stone becomes worthless and\/or your customer sues you.  \u003c\/p\u003e\n\u003ch2\u003eMoe\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe  Moe scale of hardness goes like this:\u003c\/p\u003e\n\u003cp\u003e1 Talk\u003c\/p\u003e\n\u003cp\u003e2 Gypsum\u003c\/p\u003e\n\u003cp\u003e3 Calcite\u003c\/p\u003e\n\u003cp\u003e4 Fluorite\u003c\/p\u003e\n\u003cp\u003e5 Apatite\u003c\/p\u003e\n\u003cp\u003e6 Orthoclase\u003c\/p\u003e\n\u003cp\u003e7 Quartz\u003c\/p\u003e\n\u003cp\u003e8 Topaz\u003c\/p\u003e\n\u003cp\u003e9 Corundum\u003c\/p\u003e\n\u003cp\u003e10 Diamond\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759792767167,"sku":"HARDNESS-2","price":99.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/files\/Hardness-2_temp_-1.jpg?v=1709041341"},{"product_id":"hardness-pencils-hardness","title":"Hardness Pencils, set of 5","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eSet of five hardness pencils.\u003c\/p\u003e\n\u003cp\u003eEach 'pencil' has a tip of a different hardness from No.5 to No.9 on the Moe scale of hardness (see 'Further Information').\u003c\/p\u003e\n\u003ch2\u003eIs it easy to use?\u003c\/h2\u003e\n\u003cp\u003eYes.\u003c\/p\u003e\n\u003cp\u003eSee which will scratch your sample and which will not. \u003c\/p\u003e\n\u003ch2\u003eLimitations\u003c\/h2\u003e\n\u003cp\u003eHardness varies from sample to sample, and it can also be different in different directions.\u003c\/p\u003e\n\u003cp\u003eThese are for testing minerals, e.g. out in the field. They are not suitable for use on cut gemstone (jewellery) - you scratch the stone, the stone becomes worthless and\/or your customer sues you.  \u003c\/p\u003e\n\u003ch2\u003eMoe\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003eThe  Moe scale of hardness goes like this:\u003c\/p\u003e\n\u003cp\u003e1 Talk\u003c\/p\u003e\n\u003cp\u003e2 Gypsum\u003c\/p\u003e\n\u003cp\u003e3 Calcite\u003c\/p\u003e\n\u003cp\u003e4 Fluorite\u003c\/p\u003e\n\u003cp\u003e5 Apatite\u003c\/p\u003e\n\u003cp\u003e6 Orthoclase\u003c\/p\u003e\n\u003cp\u003e7 Quartz\u003c\/p\u003e\n\u003cp\u003e8 Topaz\u003c\/p\u003e\n\u003cp\u003e9 Corundum\u003c\/p\u003e\n\u003cp\u003e10 Diamond\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759793455295,"sku":"HARDNESS","price":74.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/hardness-1.jpg?v=1630149075"},{"product_id":"50g-0001g-by-onbalance-ct250-ct-250","title":"50g \/ 0.001g (by OnBalance) SEN-250 SENSO Scale","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eSmall (almost pocket-size) diamond balance.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe most sensitive, resolution (readability) 0.001g.\u003c\/p\u003e\n\u003cp\u003eIt is also suitable for weighing diamonds, it can display the weight in carat:\u003cbr\u003e- up to 100ct in 0.005ct divisions, and then\u003cbr\u003e- up to 250ct in 0.01ct divisions. \u003c\/p\u003e\n\u003cp\u003eDownload \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0086\/6890\/5568\/files\/CTP_manual_GB_ES_FR_NL_DE_IT_v2_press.pdf?v=1620211744\"\u003einstruction manual\u003c\/a\u003e.\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eTo read an article about weighing and weighing machines\u003ca href=\"\/blogs\/weighing\/weights-and-weighing\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e click here.\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eBuilt-on clear folding lid\u003c\/p\u003e\n\u003cp\u003eCalibration weights included\u003c\/p\u003e\n\u003cp\u003eTare (re-set zero, e.g. put a on a scoop, re-set it to zero)\u003c\/p\u003e\n\u003cp\u003eBacklist display\u003c\/p\u003e\n\u003cp\u003eAuto-power-off if it isn't used (choose between 0, 60, 120 or 180 seconds)\u003c\/p\u003e\n\u003cp\u003eFitted zip-case with two calibration weights and tweezers. \u003c\/p\u003e\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003cp\u003eRESOLUTION \/ CAPACITY: \u003cbr\u003e\u003cspan data-mce-fragment=\"1\"\u003e0.001g divisions up to 50g \u003cbr\u003eAlso switchable to carat, 100ct \/ 0.005ct then, automatically, 250ct \/ 0.01ct\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003eReading 'locks' as soon as it's stable (about 3 seconds), no 'drift'.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-mce-fragment=\"1\"\u003e\u003cem\u003eAccurate\u003c\/em\u003e to 0.001g providing it's calibrated before each use, calibration weights included.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/jewellery-and-horology\/conversions-ringsizes-finger-sizes-winders-weights\"\u003eClick here\u003c\/a\u003e for a summary of weights used for weighing gold and silver, \u003ca href=\"http:\/\/www.cleavebooks.co.uk\/scol\/ccmass.htm%20\"\u003eclick here\u003c\/a\u003e for an online conversion program. \u003c\/p\u003e\n\u003cp\u003eSIZE: in its carrying case with accessories 6 X 6.5 X 2 inches (145 X 170 X 50mm).\u003c\/p\u003e\n\u003cp\u003eThe balance: 5 X 3 X 1.75 inches (130 X 75 X 40mm).\u003c\/p\u003e\n\u003cp\u003eScreen size: 45mm X 15mm\u003c\/p\u003e\n\u003cp\u003ePOWER: two AA batteries. \u003c\/p\u003e\n\u003ch2\u003eGuarantee\u003c\/h2\u003e\n\u003cp\u003e10 years. This covers manufacturing faults only, it excludes normal wear and tear, bowls, trays, finishes, clasps, hinges, feet, AC adaptors and batteries; it also excludes being overloaded \/ dropped (e.g. error messages EEE, 0-Ld, or OUEr). The guarantee is invalid if the scale shows signs of foreign material (e.g. residues of herbs, chemicals, corrosion, spilt tea).  After 1 year you must pay the postage both ways.\u003c\/p\u003e\n\u003cp\u003eInaccurate readings can be fixed by calibrating the scale, this is something that is very easy for you to do yourself with the 50g and 20g weights supplied.  Giving inaccurate readings does not mean it is broken - all electronic measuring devices need calibrating every now and again, see\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/quicktest-online.myshopify.com\/blogs\/weighing\/calibrating-weighing-machines\"\u003e\u003cspan\u003ecalibrating weighing machines\u003c\/span\u003e\u003c\/a\u003e. \u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eLegal\u003c\/h2\u003e\n\u003cp\u003eThis weighing machine is not approved for use in trade and should not be used for buying and selling on a value-for-weight basis. To see legal (approved for use in trade) balances\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/quicktest-online.myshopify.com\/collections\/scales-balances-resolution-0001g-eg-for-diamonds\" target=\"_blank\"\u003e\u003cspan\u003eclick here.\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAll equipment and materials must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. It is your responsibility to regularly check equipment against known samples, to ensure that it is working correctly.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759813148863,"sku":"SEN-250","price":59.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/files\/sen-250-2.jpg?v=1687694651"},{"product_id":"200g001g-250g01g-protec-g202-replacement-tanita-prac-tec","title":"REG-250 by OnBalance, 200g \/ 0.01g and 250g \/ 0.1g combined","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003ePocket balance (for a large pocket)\u003c\/p\u003e\n\u003cp\u003eModel: REG-250 by OnBalance\u003cem\u003e\u003cbr\u003e\u003c\/em\u003e\u003c\/p\u003e\n\u003cp\u003eSuitable for weighing very lightweight items such as gemstones (weighs down to 0.01g) AND gold (also weighs down to 0.1g) AND silver up to 250g = about 8oz). Weighs up to 200g in 0.01g increments, or up to 250g in 0.1g increments. Altogether the most 'flexible' balance \u003cem\u003eand\u003c\/em\u003e the best-designed.\u003c\/p\u003e\n\u003cp\u003eDownload \u003ca href=\"https:\/\/cdn.shopify.com\/s\/files\/1\/0086\/6890\/5568\/files\/43323_Truweigh_G202_Manual_Superside_V2.pdf?v=1620228439\"\u003einstruction manual\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eTo read an article about weighing and weighing machines\u003ca href=\"\/blogs\/weighing\/weights-and-weighing\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e click here.\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eThis weighing machine is not approved for use in trade, it must not be used for buying and selling. For approved scales\u003ca href=\"\/collections\/scales-balances-resolution-0001g-eg-for-diamonds\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e click here.\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eFeatures\u003c\/h2\u003e\n\u003cp\u003eBacklit display with lots of information, choice of two weighing ranges, pull-off lid doubles as an extra weighing pan, tare, choice of 6 weighing units, auto-power-off (customable), zip-pouch with calibration weight, battery (batteries supplied) or USB  cable (supplied) for if you don't want to use batteries. \u003c\/p\u003e\n\u003cp\u003eSwitchable to grams (g), ounces (oz), Troy ounces (ozt), pennyweight (dwt), carat (ct), grains (gn).\u003c\/p\u003e\n\u003cp\u003ePull-off lid doubles as an extra platform, e.g. for pouring in small items that would roll off the main weighing platform.\u003c\/p\u003e\n\u003cp\u003eTo read an article about weighing and weighing machines\u003ca href=\"\/blogs\/weighing\/weights-and-weighing\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e click here.\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eTechnical\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eRESOLUTION \/ CAPACITY: \u003c\/strong\u003e\u003ccr\u003e- Range 1 resolution 0.01g, capacity 200g (e.g. for gemstones) \u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003e- Range 1:  0.01g steps up to 200g (e.g. for gemstones)\u003cbr\u003e- Range 2:  0.1g steps up to 250g (e.g. for gold and silver)\u003c\/p\u003e\n\u003cp\u003eCan be switched to measure ounces, Troy ounces, pennyweight, carats or grains - \u003ca href=\"\/blogs\/jewellery-and-horology\/conversions-ringsizes-finger-sizes-winders-weights\"\u003eclick here\u003c\/a\u003e for a summary of weights used for weighing gold and silver; \u003ca href=\"http:\/\/www.cleavebooks.co.uk\/scol\/ccmass.htm%20\"\u003eclick here\u003c\/a\u003e for an online conversion program. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePRESENTATION:\u003c\/strong\u003e\u003ccr\u003eSoft zip-case (contains the scale and the calibration weight)\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eSIZE:\u003c\/strong\u003e\u003ccr\u003e- overall, 160 X 75 X 20mm\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003e- weighing platform, 120 x 128mm95 X 65mm\u003c\/p\u003e\n\u003cp\u003e- zip-pouch, 95 X 210 X 35mm\u003c\/p\u003e\n\u003cp\u003e- screen size, 35mm X 17mm\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eDISPLAY:\u003c\/strong\u003e\u003ccr\u003eIn addition to the actual weight -\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003e- 'reading stable' indicator\u003c\/p\u003e\n\u003cp\u003e- battery level indicator (useful to know, not just a 'low batt' warning)\u003c\/p\u003e\n\u003cp\u003e- percentage of capacity used (I can't think of a use for this)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePOWER: \u003c\/strong\u003e\u003ccr\u003e- 2 x AA batteries (supplied)\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003e- auto-power-off can be set to turn off (if not used) in 3mns, 2mns, 1mn, or it can be disabled\u003c\/p\u003e\n\u003cp\u003e- can also be powered with a USB cable (supplied), which will then work with any computer, mobile device or mains power with an adaptor.\u003c\/p\u003e\n\u003ch2\u003eGuarantee\u003c\/h2\u003e\n\u003cp\u003e1 year. This covers manufacturing faults only, it excludes normal wear and tear, bowls, trays, finishes, clasps, hinges, feet, AC adaptors and  batteries; it also excludes being overloaded \/ dropped (e.g. error messages EEE, 0-Ld, or OUEr). The guarantee is invalid if the scale shows signs of foreign material (e.g. residues of herbs, chemicals, corrosion, spilt tea).  \u003c\/p\u003e\n\u003cp\u003eInaccurate readings can be fixed by calibrating the scale, this is something that is very easy for you to do yourself with the 100g weight supplied. Giving inaccurate readings does not mean it is broken - all electronic measuring devices need calibrating every now and again, see\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/quicktest-online.myshopify.com\/blogs\/weighing\/calibrating-weighing-machines\"\u003e\u003cspan\u003ecalibrating weighing machines\u003c\/span\u003e\u003c\/a\u003e. \u003c\/p\u003e\n\u003ch2\u003eLegal\u003c\/h2\u003e\n\u003cp\u003eThis weighing machine is not approved for use in trade and should not be used for buying and selling on a value-for-weight basis.\u003c\/p\u003e\n\u003cp\u003eTo see legal (approved for use in trade) balances\u003cspan\u003e \u003c\/span\u003e\u003ca href=\"https:\/\/quicktest-online.myshopify.com\/collections\/scales-balances-resolution-0001g-eg-for-diamonds\" target=\"_blank\"\u003e\u003cspan\u003eclick here.\u003c\/span\u003e\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003eAll equipment and materials must be used in conjunction with the user's skill, knowledge and experience. Under no circumstances shall QUICKTEST be liable for direct or indirect loss sustained in connection with any item. It is your responsibility to regularly check equipment against known samples, to ensure that it is working correctly.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759813869759,"sku":"REG-250","price":65.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/files\/Reg-250_1.jpg?v=1778402276"},{"product_id":"620g-01g-ohaus-sjx622m-ohaus-620","title":"620g \/ 0.1g, Ohaus SJX622M","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eFull-size table balance.\u003c\/p\u003e\n\u003cp\u003eApproved by Trading Standards for use in trade. That means you can use this for weighing precious metals when buying by weight. Approved for use anywhere, not limited by location (as are the older models of approved balances).\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e620g \/ 0.01g when used for your own information, away from customers\u003c\/p\u003e\n\u003cp\u003e620g \/ 0.1g when used in front of customers for buying precious metals (it will still give a reading to 0.001g, you're meant to ignore the last decimal place and only use it for weighing to the nearest 0.1g)\u003c\/p\u003e\n\u003cp\u003eBattery or mains (takes standard AA batteries)\u003c\/p\u003e\n\u003cp\u003eCompact lightweight yet sturdy\u003c\/p\u003e\n\u003cp\u003eCan be used anywhere, a calibration weight is built into the balance,\u003c\/p\u003e\n\u003cp\u003e620g not high enough for you? Model \u003ca href=\"\/products\/1500g-01g-ohaus-sjx1502m-ohaus-1500\"\u003eOHAUS-1500\u003c\/a\u003e weighs up to 1500g. \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/weighing\/approved-weighing-machines\"\u003eClick here\u003c\/a\u003e to read an article about approved balances\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003ch2\u003eAdditional features\u003c\/h2\u003e\n\u003cp\u003ePARTS-COUNTING: weigh 20 (or 50 or 100) identical small items, now when you pile the items onto the weighing platform it will display the number of items rather than the weight.\u003c\/p\u003e\n\u003cp\u003ePERCENTAGE: weigh one item, now when you weigh each item it will tell how much it weighs relative to the sample, e.g. 5% heavier, e.g. 4% lighter.\u003c\/p\u003e\n\u003cp\u003eCHECK-WEIGHING: set a lower limit (e.g. 95g), set a higher limit (e.g. 105g), now when you weigh each item, you will see a circle if the weighing is within the limits (in this example, between 95g and 105g), you will see a down-arrow if the weight is too low (in this example, under 95g), you will see an up-arrow if the weight is too high (in this example, over 105g)\u003c\/p\u003e\n\u003cp\u003eTOTALIZE: as you add items to the pile, the display will show the weight of the added items and also the total weight.\u003c\/p\u003e\n\u003cp\u003eMODE: you can decide which of the above functions can be accessed by pressing MODE, so that you are not confused by lots of functions you never use.\u003c\/p\u003e\n\u003cp\u003ePRINTING \/ LOGGING: you can connect the balance to a computer, supports RS232, USB Host, USB Device, Ethernet, Bluetooth. IMPORTANT: computer functions are not supported by QUICKTEST, please ask a computer expert or contact the manufacturers, Ohaus.\u003c\/p\u003e\n\u003cp\u003eBACKLIGHT: can be set to always-off, always-on, or on only whilst weighing.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003cp\u003eCAPACITY \/ RESOLUTION: 620g \/ 0.001g when used for your own information, away from customers\u003c\/p\u003e\n\u003cp\u003e620g \/ 0.01g when used in front of customers for buying precious metals (it will still give a reading to 0.001g, you're meant to ignore the last decimal place and only use it for weighing to the nearest 0.1g)\u003c\/p\u003e\n\u003cp\u003eSTANDARD: Class II, for weighing precious metals\u003c\/p\u003e\n\u003cp\u003eSIZE: weighing platform 170mm (6.5 inches) X 140mm (5.5 inches). Overall 222 X 202 X 54mm (8.5 X 8 X 2.25 inches).\u003c\/p\u003e\n\u003cp\u003ePOWER: plugs into mains (power supply included) or four size AA batteries..\u003c\/p\u003e\n\u003cp\u003eGUARANTEE: 1 year\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/weighing\/approved-weighing-machines\"\u003eClick here\u003c\/a\u003e to read an article about approved balances\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003ch2\u003eLegal\u003c\/h2\u003e\n\u003cp\u003eNo restrictions, you can carry it around the country (if you wish) and use it anywhere for buying precious metals by weight.\u003c\/p\u003e\n\u003cp\u003eIf you wish to SELL precious metals by weight, you will require a front-facing display for the customer to see, see optional accessories.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759814262975,"sku":"OHAUS-620","price":498.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/ohaus-620-1.jpg?v=1623671240"},{"product_id":"1500g-01g-ohaus-sjx1502m-ohaus-1500","title":"1500g \/ 0.1g, Ohaus SJX1502M","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eFull-size table balance.\u003c\/p\u003e\n\u003cp\u003eApproved by Trading Standards for use in trade. That means you can use this for weighing precious metals when buying by weight. Approved for use anywhere, not limited by location (as are the older models of approved balances).\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e1500g \/ 0.01g when used for your own information, away from customers\u003c\/p\u003e\n\u003cp\u003e1500g \/ 0.1g when used in front of customers for buying precious metals (it will still give a reading to 0.001g, you're meant to ignore the last decimal place and only use it for weighing to the nearest 0.1g)\u003c\/p\u003e\n\u003cp\u003eBattery or mains (takes standard AA batteries)\u003c\/p\u003e\n\u003cp\u003eCompact lightweight yet sturdy\u003c\/p\u003e\n\u003cp\u003eSuperior overload protection, you'd have to weigh 15,000g before it breaks (very difficult to do, though not impossible!)\u003c\/p\u003e\n\u003cp\u003eCan be used anywhere, a calibration weight is built into the balance,\u003c\/p\u003e\n\u003cp\u003eToo expensive for you?  We have a 620g model which is far less, see \u003ca href=\"\/products\/620g-01g-ohaus-sjx622m-ohaus-620?\"\u003eOHAUS-620\u003c\/a\u003e\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/weighing\/approved-weighing-machines\"\u003eClick here\u003c\/a\u003e to read an article about approved balances\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003ch2\u003eAdditional features\u003c\/h2\u003e\n\u003cp\u003ePARTS-COUNTING: weigh 20 (or 50 or 100) identical small items, now when you pile the items onto the weighing platform it will display the number of items rather than the weight.\u003c\/p\u003e\n\u003cp\u003ePERCENTAGE: weigh one item, now when you weigh each item it will tell how much it weighs relative to the sample, e.g. 5% heavier, e.g. 4% lighter.\u003c\/p\u003e\n\u003cp\u003eCHECK-WEIGHING: set a lower limit (e.g. 95g), set a higher limit (e.g. 105g), now when you weigh each item, you will see a circle if the weighing is within the limits (in this example, between 95g and 105g), you will see a down-arrow if the weight is too low (in this example, under 95g), you will see an up-arrow if the weight is too high (in this example, over 105g)\u003c\/p\u003e\n\u003cp\u003eTOTALIZE: as you add items to the pile, the display will show the weight of the added items and also the total weight.\u003c\/p\u003e\n\u003cp\u003eMODE: you can decide which of the above functions can be accessed by pressing MODE, so that you are not confused by lots of functions you never use.\u003c\/p\u003e\n\u003cp\u003ePRINTING \/ LOGGING: you can connect the balance to a computer, supports RS232, USB Host, USB Device, Ethernet, Bluetooth. IMPORTANT: computer functions are not supported by QUICKTEST, please ask a computer expert or contact the manufacturers, Ohaus.\u003c\/p\u003e\n\u003cp\u003eBACKLIGHT: can be set to always-off, always-on, or on only whilst weighing.\u003c\/p\u003e\n\u003ch2\u003eTechnical Specification\u003c\/h2\u003e\n\u003cp\u003eCAPACITY \/ RESOLUTION: 1500g \/ 0.001g when used for your own information, away from customers\u003c\/p\u003e\n\u003cp\u003e1500g \/ 0.01g when used in front of customers for buying precious metals (it will still give a reading to 0.001g, you're meant to ignore the last decimal place and only use it for weighing to the nearest 0.1g)\u003c\/p\u003e\n\u003cp\u003eSTANDARD: Class II, for weighing precious metals\u003c\/p\u003e\n\u003cp\u003eSIZE: weighing platform 170mm (6.5 inches) X 140mm (5.5 inches). Overall 222 X 202 X 54mm (8.5 X 8 X 2.25 inches).\u003c\/p\u003e\n\u003cp\u003ePOWER: plugs into mains (power supply included) or four size AA batteries..\u003c\/p\u003e\n\u003cp\u003eGUARANTEE: 1 year\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"\/blogs\/weighing\/approved-weighing-machines\"\u003eClick here\u003c\/a\u003e to read an article about approved balances\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003ch2\u003eLegal\u003c\/h2\u003e\n\u003cp\u003eNo restrictions, you can carry it around the country (if you wish) and use it anywhere for buying precious metals by weight.\u003c\/p\u003e\n\u003cp\u003eIf you wish to SELL precious metals by weight, you will require a front-facing display for the customer to see, see optional accessories.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759814525119,"sku":"OHAUS-1500","price":619.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/ohaus-1500-1.jpg?v=1623671204"},{"product_id":"uv-torch-best-uv-1","title":"UV torch 5W + 18650 battery + charger","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eThe most powerful of our standard UV lights (there is a specialist light which is 15W). If you want one that is the most powerful without going over-the-top, this is my recommendation. \u003c\/p\u003e\n\u003cp\u003eTakes one rechargeable battery (battery and charger included). \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/quicktest-online.myshopify.com\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers\"\u003eRead all about\u003c\/a\u003e\u003cspan\u003e how UV light works and what it will detect (fascinating article!)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers#section_8\"\u003eSee photos\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e of what you will see with this (and all the other) UV lights.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eTechnical\u003c\/h2\u003e\n\u003cp\u003eSize: 10mm long X 35mm dia. maximum.  (6 X 1¼ inches)\u003c\/p\u003e\n\u003cp\u003eWeight including battery: 180g\u003c\/p\u003e\n\u003cp\u003eLight source: LED chip, Korean\u003c\/p\u003e\n\u003cp\u003eWavelength: 365nm\u003c\/p\u003e\n\u003cp\u003eOutput (electrical): 5W\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOutput (light intensity): radiant flux* 1200-1500mW \u003cbr\u003e* Like \u003cem\u003elumens\u003c\/em\u003e.  But lumens only refer to 'white' (visible) light. \u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBATTERY\/POWER\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eThis item takes one 18650 rechargeable lithium battery (extra-large, extra-powerful, ours are 6000mAh). Battery and charger supplied.  It does not take standard batteries.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBATTERY LIFE\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e- brightest for 1½ hours (¾hr at its \u003cem\u003every\u003c\/em\u003e brightest then ¾hr not \u003cem\u003equite\u003c\/em\u003e so bright)\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e- then, over the next 2 hours, it gradually dims, it still \"works\" but not at its best\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e- it is still 'lit' for another 3 hours but too dim to be of use \u003c\/p\u003e\n\u003cp\u003eThe rechargeable lithium battery is included with this product, \u003cspan data-mce-fragment=\"1\"\u003ea \u003c\/span\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/products\/battery-rechargeable-lithium-26650\" data-mce-fragment=\"1\" data-mce-href=\"https:\/\/www.quicktest.co.uk\/products\/battery-rechargeable-lithium-26650\"\u003eextra batteries\u003c\/a\u003e are available.\u003c\/p\u003e\n\u003ch2\u003eFurther information\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers\"\u003eAll about UV light\u003c\/a\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewhat it is (and fascinating facts)\u003c\/li\u003e\n\u003cli\u003edifferent types (and their applications)\u003c\/li\u003e\n\u003cli\u003egeneral examples of items lit by UV light\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers#section_8\"\u003ePhotos\u003c\/a\u003e of what you will see with this (and other) UV lights:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePaper (banknote, stamp, security marking)\u003c\/li\u003e\n\u003cli\u003eUranium glass\u003c\/li\u003e\n\u003cli\u003ePorcelain repair detection \u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cul\u003e\u003c\/ul\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759819145407,"sku":"UV-1-5W","price":42.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/UV-L-3W-1.jpg?v=1623680994"},{"product_id":"ultra-violet-torch-with-100-led-lights-uv-100","title":"Ultra violet torch, 100 LED lights, the brightest","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eBy far the most brightest (to the human eye) of all. An amazing 100 LED lights. And because it takes so many batteries, it keeps going for quite a long time. \u003c\/p\u003e\n\u003cp\u003eTakes six AA batteries (included). \u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/quicktest-online.myshopify.com\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers\"\u003eRead all about\u003c\/a\u003e\u003cspan\u003e how UV light works and what it will detect (fascinating article!)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers#section_8\"\u003eSee photos\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e of what you will see with this (and all the other) UV lights.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eTechnical\u003c\/h2\u003e\n\u003cp\u003eSize: total length 190mm, 7½ inches + the head 25mm, 1 inch).  Width of handle  35mm, 1¼ inches (head is 75mm, 3 inches dia.)\u003c\/p\u003e\n\u003cp\u003eWeight including battery: 185g\u003c\/p\u003e\n\u003cp\u003eLight source: 100 LEDs.\u003c\/p\u003e\n\u003cp\u003eWavelength: 390 - 395nm\u003c\/p\u003e\n\u003cp\u003eOutput: unknown\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003eBatteries\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003eTakes six AA batteries. \u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBATTERY LIFE\u003c\/strong\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eBest alkaline\u003c\/strong\u003e (typically £1.00 to £1.50 per battery*):\u003cbr\u003e \u003cbr\u003e- brightest for 5 hours (2hrs at its \u003cem data-mce-fragment=\"1\"\u003every\u003c\/em\u003e brightest then 3hrs not \u003cem data-mce-fragment=\"1\"\u003equite\u003c\/em\u003e so bright)\u003cbr\u003e \u003cbr\u003e- then, over the next 3 hours, it gradually dims, it still \"works\" but not at its best\u003cbr\u003e \u003cbr\u003e- it is still 'lit' for another 12  hours but too dim to be of use\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCheapest\u003c\/strong\u003e (typically 10p to 20p per battery*):\u003cbr\u003e \u003cbr\u003e- brightest for:  2 hours (1hr at its \u003cem\u003every\u003c\/em\u003e brightest then 1hr not \u003cem\u003equite\u003c\/em\u003e so bright)\u003cbr\u003e \u003cbr\u003e- then, over the next 2 hours, it gradually dims, it still \"works\" but not at its best\u003cbr\u003e \u003cbr\u003e- it is still 'lit' for another 8 hours but too dim to be of use\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e* \u003c\/strong\u003eThis is just an example of the quality of battery, standard alkaline batteries are supplied with this item.\u003c\/p\u003e\n\u003ch2\u003eFurther information\u003cbr\u003e\n\u003c\/h2\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers\"\u003eAll about UV light\u003c\/a\u003e:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ewhat it is (and fascinating facts)\u003c\/li\u003e\n\u003cli\u003edifferent types (and their applications)\u003c\/li\u003e\n\u003cli\u003egeneral examples of items lit by UV light\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers#section_8\"\u003ePhotos\u003c\/a\u003e\u003cspan\u003e \u003c\/span\u003eof what you will see with this (and other) UV lights:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003ePaper (banknote, stamp, security marking)\u003c\/li\u003e\n\u003cli\u003eUranium glass\u003c\/li\u003e\n\u003cli\u003ePorcelain repair detection \u003c\/li\u003e\n\u003c\/ul\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759820062911,"sku":"UV-100","price":32.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/uv-100-1.jpg?v=1630585657"},{"product_id":"10x20-triplet-loupe-with-uv-light-white-rim-of-light-10x20-uv","title":"10X20 triplet loupe with UV light + white rim of light","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eTo help you compare the 10X loupes, a summary of this item is shown in blue:\u003cbr\u003e\u003cbr\u003e\u003cem\u003eSIZE:\u003c\/em\u003e \u003cbr\u003e10X12 - 10X13 - 10X14 - \u003cspan style=\"color: #2b00ff;\"\u003e\u003cstrong\u003e10X20*\u003c\/strong\u003e\u003c\/span\u003e - 10X21 - \u003cspan style=\"color: #000000;\"\u003e10X21\u003c\/span\u003e - 10X23 \u003cbr\u003e(magnification X diameter of lens, mm)\u003cbr\u003e* u\u003cspan style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\" data-mce-style=\"font-size: 0.875rem;\"\u003eseable diameter of this lens (allowing for the rim that holds the lens in place) 18mm.\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cem\u003eOPTICAL QUALITY: \u003c\/em\u003e\u003cbr\u003ebasic - good - \u003cspan style=\"color: #2b00ff;\"\u003e\u003cstrong\u003eVERY GOOD\u003c\/strong\u003e\u003c\/span\u003e – exceptional\u003c\/p\u003e\n\u003cp\u003eThere are also reviews of loupes, \u003ca href=\"https:\/\/quicktest-online.myshopify.com\/blogs\/magnifiers-microscopes\/loupes-compared\"\u003eclick here\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eComments\u003c\/h2\u003e\n\u003cp\u003eIn addition to the white light, this has a very effective UV light (not all UV lights in loupes are effective!) for examining stamps, banknotes, gemstones etc (there are many uses, see our article about UV lights).\u003c\/p\u003e\n\u003cp\u003eLight is as important as magnification, without a good light the best loupe is of little use. Sitting at a desk this isn't a problem, use any table light; working as a gemmologist you will have your own light source, but working at dimly-lit auction halls or early morning markets - you\u003cem\u003e\u003cspan\u003e \u003c\/span\u003ewill\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003eneed a light!\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe light in this loupe is in the form of a 'rim' all the way around the lens, which is much better than 'spot' lights which can cause reflections and make it\u003cspan\u003e \u003c\/span\u003e\u003cem\u003emore\u003c\/em\u003e\u003cspan\u003e \u003c\/span\u003edifficult to see.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759820259519,"sku":"10X20-UV","price":27.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/10x20-uv-1.jpg?v=1623671173"},{"product_id":"uv-in-safebox-2-uv-1-white-light-uv-sw","title":"Ultra violet in safe-box (longwave + shortwave + white )","description":"\u003ch2\u003e Summary\u003c\/h2\u003e\n\u003cp\u003eShortwave UV light in a 'safe' box (to stop the light burning your eyes \u003cem\u003eand\u003c\/em\u003e a longwave UV light \u003cem\u003eand\u003c\/em\u003e an ordinary white light.\u003c\/p\u003e\n\u003cp\u003eFor examining gemstones, stamps and other small objects.\u003c\/p\u003e\n\u003cp\u003eIt can also be used for sterilising small items of jewellery to make them safe from viruses - but please \u003ca href=\"\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e read the explanation\u003c\/span\u003e\u003c\/a\u003e first.\u003c\/p\u003e\n\u003cp\u003eCan be switched to UV longwave, UV shortwave, or white light. To see the reaction under these three different lights it can also be set to 'cycle' automatically through all the modes.\u003c\/p\u003e\n\u003cp\u003eCan be powered by batteries or mains.\u003c\/p\u003e\n\u003cp\u003e\u003cem\u003eINSTRUCTIONS:\u003c\/em\u003e place your item on the table, place the UV lightbox over the top .\u003c\/p\u003e\n\u003cp\u003e\u003ca href=\"https:\/\/quicktest-online.myshopify.com\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers\"\u003eRead all about\u003c\/a\u003e\u003cspan\u003e how UV light works and what it will detect (fascinating article!)\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003ca href=\"https:\/\/www.quicktest.co.uk\/blogs\/testing-ultra-violet-magnets\/all-about-ultra-violet-testers#section_8\"\u003eSee photos\u003c\/a\u003e\u003cspan data-mce-fragment=\"1\"\u003e of what you will see with the many models of UV light. \u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003eDetail\u003c\/h2\u003e\n\u003cp\u003eLights:\u003c\/p\u003e\n\u003cp\u003e- white light\u003c\/p\u003e\n\u003cp\u003e- longwave (LED) 365nm\u003c\/p\u003e\n\u003cp\u003e- shortwave (LED) 254nm\u003c\/p\u003e\n\u003cp\u003eLens: 30mm diameter, 10X magnification\u003c\/p\u003e\n\u003cp\u003eExternal size: 95 X 65 X 52mm\u003c\/p\u003e\n\u003cp\u003eMaximum samples size: 35 X 20mm \u003cbr\u003eYou can certainly fit larger objects but if they are too large they will block the light, this is designed for gemstones or very \u003cem\u003esmall\u003c\/em\u003e mineral samples...or stamps...or banknotes. \u003c\/p\u003e\n\u003cp\u003ePower:  3 X AAA batteries\u003cbr\u003eor any USB source (e.g. computer\/mobile device\/powerbank).  USB lead supplied.\u003cbr\u003eAlso supplied, a mains plug with a USB socket, but it's a 2-pin plug so you will need a 2-pin adaptor (not supplied).\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759822127295,"sku":"UV-SW","price":52.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/uv-sw-1.jpg?v=1631702005"},{"product_id":"10x20-lightweight-hexagonal-triplet-loupe-best-large-loupe-bar-zeiss-10x20","title":"10X20 lightweight hexagonal triplet loupe, stunning large loupe","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003e10X20 by Quicktest\u003cbr\u003e(10X magnification, 20mm diameter lens)\u003cbr\u003e\u003cbr\u003eTo help you compare the 10X loupes, a summary of this item is shown in blue:\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cem\u003eSIZE:\u003c\/em\u003e \u003c\/strong\u003e\u003cbr\u003e10X12 - 10X13 - 10X14 - \u003cstrong\u003e\u003cspan style=\"color: #2b00ff;\" data-mce-style=\"color: #2b00ff;\"\u003e10X20*\u003c\/span\u003e \u003c\/strong\u003e- 10X21 - 10X21 - \u003cspan data-mce-fragment=\"1\"\u003e10X23\u003c\/span\u003e - \"30X21”\u003cbr\u003e(magnification X diameter of lens, mm)\u003cbr\u003e* u\u003cspan style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\" data-mce-style=\"font-size: 0.875rem;\"\u003eseable diameter of this lens (allowing for the rim that holds the lens in place) 18.5mm\u003c\/span\u003e\u003cbr\u003e\u003cbr\u003e\u003cstrong\u003e\u003cem\u003eOPTICAL QUALITY\u003c\/em\u003e\u003c\/strong\u003e\u003cbr\u003ebasic - good - \u003cstrong\u003e\u003cspan style=\"color: #2b00ff;\" data-mce-style=\"color: #2b00ff;\"\u003eVERY GOOD\u003c\/span\u003e\u003c\/strong\u003e - exceptional\u003cbr\u003e\u003cbr\u003eThere are also reviews of loupes, \u003ca href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\" data-mce-fragment=\"1\" target=\"_blank\" data-mce-href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\"\u003e\u003cspan style=\"color: #0000ff;\" data-mce-fragment=\"1\" data-mce-style=\"color: #0000ff;\"\u003eclick here\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003ch2\u003eComments\u003c\/h2\u003e\n\u003cp\u003eEngraved with a conversion chart for the weights of gold and diamonds. This is our own brand, we have them made for us in China, it is by far the best 10X large lens (apart from the Zeiss), despite its relatively low price.\u003c\/p\u003e\n\u003cp\u003eI've marked the quality as \"very good\" as opposed to \"exceptional\" because it's not \u003cem\u003equite\u003c\/em\u003e as good as Zeiss!\u003c\/p\u003e\n\u003ch2\u003eTechnical\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMagnification \/ lens size in mm:\u003c\/strong\u003e 10X20\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Lens material:\u003c\/strong\u003e glass\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Lens type:\u003c\/strong\u003e Triplet (contains three lenses cemented together).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e jewellers' loupe (small, pocket-size, folds into its metal casing)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin \/ brand:\u003c\/strong\u003e manufactured for us in China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasing:\u003c\/strong\u003e metal\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e brushed aluminium, lightweight\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePresentation \/ extras:\u003c\/strong\u003e soft leather pouch and cardboard box\u003c\/p\u003e\n\u003ch2\u003eFurther information\u003c\/h2\u003e\n\u003cp\u003eEverything you need to know about \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnifiers-and-magnification\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\" data-mce-style=\"color: #0000ff;\"\u003e magnifiers and magnification\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSee information about (and reviews of)\u003ca href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\" data-mce-style=\"color: #0000ff;\"\u003e loupes\u003c\/span\u003e\u003c\/a\u003e (small high-power folding jewellers' magnifiers).\u003c\/p\u003e\n\u003cp\u003eSee information about (and reviews of) \u003ca href=\"\/blogs\/magnifiers-microscopes\/binocular-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\" data-mce-style=\"color: #0000ff;\"\u003e binocular (head-worn) magnifiers\u003c\/span\u003e\u003c\/a\u003e- especially the \u003ca href=\"\/blogs\/magnifiers-microscopes\/binocular-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\" data-mce-style=\"color: #0000ff;\"\u003e surgeons-type.\u003c\/span\u003e\u003c\/a\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnifiers-for-the-partially-sighted-low-vision-aids\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\" data-mce-style=\"color: #0000ff;\"\u003e a guide to magnifiers for the partially-sighted\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/magnifiers-microscopes\/uv-ultra-violet-loupes\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\" data-mce-style=\"color: #0000ff;\"\u003e loupes with UV lights\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eProducts: see pocket microscopes and phone microscopes, \u003ca href=\"\/collections\/pocket-microscopes-including-phone-microscopes\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\" data-mce-style=\"color: #0000ff;\"\u003e click here\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eWith most magnifiers* magnification and working distance are related. \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnification-calculator\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\" data-mce-style=\"color: #0000ff;\"\u003e Download our Excel sheet\u003c\/span\u003e\u003c\/a\u003e, enter a magnification to see the resulting working distance, enter a working distance to see the resulting magnification.\u003c\/p\u003e\n\u003cp\u003e* excluding surgeons-type, digital \u0026amp; phone magnifiers, and microscopes.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39760112320703,"sku":"10X20","price":29.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/10X20-4.jpg?v=1628779300"},{"product_id":"20x21-triplet-loupe-20x21-r","title":"20X21 triplet loupe","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003e20X21\u003c\/p\u003e\n\u003cp\u003eThe 'standard' magnification for a loupe (for jewellery \u0026amp; gemstones, stamps \u0026amp; coins) is 10X. \u003cbr\u003eThis one is 20X\u003cbr\u003eThe diameter of the lens is 21mm*\u003cbr\u003e* u\u003cspan style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\" data-mce-style=\"font-size: 0.875rem;\"\u003eseable diameter of this lens (allowing for the rim that holds the lens in place) 19mm\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eToo see reviews of loupes, \u003ca href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\"\u003eclick here\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eDetail\u003c\/h2\u003e\n\u003cp\u003eThis really is the largest high-quality 20X loupe. Though even with this high-quality triplet, they are at the limit of what can be done technically - although the image is crystal sharp in the centre, it is just a bit wobbly around the edges.\u003c\/p\u003e\n\u003cp\u003eIncidentally, I did once sell a genuine large 20X for half this price, but the quality was so awful I got fed up with people returning them and I discontinued them.\u003c\/p\u003e\n\u003ch2\u003eTechnical\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMagnification \/ lens size in mm:\u003c\/strong\u003e 20X21\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Lens material:\u003c\/strong\u003e glass\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Lens type:\u003c\/strong\u003e Triplet (one magnifier made of three lenses on top of each other)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e jewellers' loupe (small, pocket-size, folds into its metal casing)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin \/ brand:\u003c\/strong\u003e we import these from China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasing:\u003c\/strong\u003e metal\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e chrome\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePresentation \/ extras:\u003c\/strong\u003e soft leather case and plain cardboard box\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eFurther information\u003c\/h2\u003e\n\u003cp\u003eEverything you need to know about \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnifiers-and-magnification\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e magnifiers and magnification\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSee information about (and reviews of)\u003ca href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e loupes\u003c\/span\u003e\u003c\/a\u003e (small high-power folding jewellers' magnifiers).\u003c\/p\u003e\n\u003cp\u003eSee information about (and reviews of) \u003ca href=\"\/blogs\/magnifiers-microscopes\/binocular-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e binocular (head-worn) magnifiers\u003c\/span\u003e\u003c\/a\u003e- especially the \u003ca href=\"\/blogs\/magnifiers-microscopes\/binocular-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e surgeons-type.\u003c\/span\u003e\u003c\/a\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnifiers-for-the-partially-sighted-low-vision-aids\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e a guide to magnifiers for the partially-sighted\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/magnifiers-microscopes\/uv-ultra-violet-loupes\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e loupes with UV lights\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eVideo (electronic) magnifiers, \u003ca href=\"\/blogs\/magnifiers-microscopes\/video-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e video magnifiers compared\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eProducts: see pocket microscopes and phone microscopes, \u003ca href=\"\/collections\/pocket-microscopes-including-phone-microscopes\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e click here\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eWith most magnifiers* magnification and working distance are related. \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnification-calculator\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e Download our Excel sheet\u003c\/span\u003e\u003c\/a\u003e, enter a magnification to see the resulting working distance, enter a working distance to see the resulting magnification.\u003c\/p\u003e\n\u003cp\u003e* excluding surgeons-type, digital \u0026amp; phone magnifiers, and microscopes.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759830909119,"sku":"20X21-R","price":27.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/20x21-r-1.jpg?v=1623671212"},{"product_id":"30x21-triplet-loupe-30x21","title":"30X21 triplet Loupe","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003e30X21\u003cbr\u003e\u003cbr\u003eThe 'standard' magnification for a loupe (for jewellery \u0026amp; gemstones, stamps \u0026amp; coins) is 10X. \u003cbr\u003eThis one is 30X\u003cbr\u003eThe diameter of the lens is 21mm \u003cbr\u003e\u003cspan style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\" data-mce-style=\"font-size: 0.875rem;\"\u003eUseable diameter of this lens (allowing for the rim that holds the lens in place) 18mm.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003eToo see reviews of loupes, \u003ca href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\"\u003eclick here\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eDetail\u003c\/h2\u003e\n\u003cp\u003eThis really \u003cem data-mce-fragment=\"1\"\u003eis \u003c\/em\u003ethe largest possible strongest possible loupe with the highest quality triplet lens (even allowing for the \"useable\" area of the lens). However, there really are limits as to what can be done technically - the image is crystal sharp in the very centre, most of it is very wobbly.\u003c\/p\u003e\n\u003cp\u003eThis said, if you \u003cem\u003ewant\u003c\/em\u003e \u003cspan data-mce-fragment=\"1\"\u003ethe largest possible strongest possible loupe with the highest quality triplet lens - this is the one.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e \u003c\/p\u003e\n\u003ch2\u003eFurther information\u003c\/h2\u003e\n\u003cp\u003eEverything you need to know about \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnifiers-and-magnification\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e magnifiers and magnification\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSee information about (and reviews of)\u003ca href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e loupes\u003c\/span\u003e\u003c\/a\u003e (small high-power folding jewellers' magnifiers).\u003c\/p\u003e\n\u003cp\u003eSee information about (and reviews of) \u003ca href=\"\/blogs\/magnifiers-microscopes\/binocular-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e binocular (head-worn) magnifiers\u003c\/span\u003e\u003c\/a\u003e- especially the \u003ca href=\"\/blogs\/magnifiers-microscopes\/binocular-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e surgeons-type.\u003c\/span\u003e\u003c\/a\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnifiers-for-the-partially-sighted-low-vision-aids\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e a guide to magnifiers for the partially-sighted\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/magnifiers-microscopes\/uv-ultra-violet-loupes\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e loupes with UV lights\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eVideo (electronic) magnifiers, \u003ca href=\"\/blogs\/magnifiers-microscopes\/video-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e video magnifiers compared\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eProducts: see pocket microscopes and phone microscopes, \u003ca href=\"\/collections\/pocket-microscopes-including-phone-microscopes\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e click here\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eWith most magnifiers* magnification and working distance are related. \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnification-calculator\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e Download our Excel sheet\u003c\/span\u003e\u003c\/a\u003e, enter a magnification to see the resulting working distance, enter a working distance to see the resulting magnification.\u003c\/p\u003e\n\u003cp\u003e* excluding surgeons-type, digital \u0026amp; phone magnifiers, and microscopes.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759831072959,"sku":"30X21","price":37.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/30x21-1.jpg?v=1623671231"},{"product_id":"30x18-triplet-loupe-30x10","title":"30X18 triplet loupe","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003e30X18\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eThe 'standard' magnification for a loupe (for jewellery \u0026amp; gemstones, stamps \u0026amp; coins) is 10X. \u003cbr\u003eThis one is 30X\u003cbr\u003eThe diameter of the lens is 18mm*\u003cbr\u003e* u\u003cspan style=\"font-size: 0.875rem;\" data-mce-fragment=\"1\" data-mce-style=\"font-size: 0.875rem;\"\u003eseable diameter of this lens (allowing for the rim that holds the lens in place) 15mm\u003c\/span\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eToo see reviews of loupes, \u003ca href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\"\u003eclick here\u003c\/a\u003e\u003c\/p\u003e\n\u003ch2\u003eDetail\u003c\/h2\u003e\n\u003cp\u003eThis really is a large high-quality genuine 30X loupe. Though even with this high-quality triplet, there is limit as to what can be done technically - although the image is crystal sharp in the centre, it really is quite wobbly around the edges.\u003c\/p\u003e\n\u003ch2\u003eTechnical\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMagnification \/ lens size in mm:\u003c\/strong\u003e 30X18\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Lens material:\u003c\/strong\u003e glass\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Lens type:\u003c\/strong\u003e Triplet (one magnifier made of three lenses on top of each other)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e jewellers' loupe (small, pocket-size, folds into its metal casing)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin \/ brand:\u003c\/strong\u003e we import these from China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasing:\u003c\/strong\u003e metal\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e black\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePresentation \/ extras:\u003c\/strong\u003e Plain cardboard box\u003c\/p\u003e\n\u003ch2\u003eFurther information\u003c\/h2\u003e\n\u003cp\u003eEverything you need to know about \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnifiers-and-magnification\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e magnifiers and magnification\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSee information about (and reviews of)\u003ca href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e loupes\u003c\/span\u003e\u003c\/a\u003e (small high-power folding jewellers' magnifiers).\u003c\/p\u003e\n\u003cp\u003eSee information about (and reviews of) \u003ca href=\"\/blogs\/magnifiers-microscopes\/binocular-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e binocular (head-worn) magnifiers\u003c\/span\u003e\u003c\/a\u003e- especially the \u003ca href=\"\/blogs\/magnifiers-microscopes\/binocular-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e surgeons-type.\u003c\/span\u003e\u003c\/a\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnifiers-for-the-partially-sighted-low-vision-aids\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e a guide to magnifiers for the partially-sighted\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/magnifiers-microscopes\/uv-ultra-violet-loupes\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e loupes with UV lights\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eVideo (electronic) magnifiers, \u003ca href=\"\/blogs\/magnifiers-microscopes\/video-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e video magnifiers compared\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eProducts: see pocket microscopes and phone microscopes, \u003ca href=\"\/collections\/pocket-microscopes-including-phone-microscopes\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e click here\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eWith most magnifiers* magnification and working distance are related. \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnification-calculator\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e Download our Excel sheet\u003c\/span\u003e\u003c\/a\u003e, enter a magnification to see the resulting working distance, enter a working distance to see the resulting magnification.\u003c\/p\u003e\n\u003cp\u003e* excluding surgeons-type, digital \u0026amp; phone magnifiers, and microscopes.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759832973503,"sku":"30X10","price":29.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/30x10-1.jpg?v=1623671229"},{"product_id":"10x18-with-20x12-loupe-both-triplets-10x18-20x12","title":"10X18 with 20X12 Loupe (both triplets)","description":"\u003ch2\u003eSummary\u003c\/h2\u003e\n\u003cp\u003eA 10X magnification lens folds out from on end (18mm diameter); 20X from the other end (12mm diameter).  \u003cbr\u003e\u003cbr\u003e Too see reviews of loupes, \u003ca href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\"\u003eclick here\u003c\/a\u003e and then scroll down to see the difference between this and an identical-looking loupe at a fifth the price.\u003c\/p\u003e\n\u003ch2\u003eDetail\u003c\/h2\u003e\n\u003cp\u003e\u003cspan\u003eA 10X magnification lens folds out from on end (18mm diameter); 20X from the other end (12mm diameter). \u003c\/span\u003e \u003c\/p\u003e\n\u003cp\u003eBest quality. \u003c\/p\u003e\n\u003cp\u003eI always say that a good quality 10X loupe is better than a 20X loupe - with this one you get the \u003cem\u003echoice\u003c\/em\u003e and can judge for yourself. \u003c\/p\u003e\n\u003ch2\u003eTechnical\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eMagnification \/ lens size in mm:\u003c\/strong\u003e 10X18 with 20X12\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Lens material:\u003c\/strong\u003e glass\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e Lens type:\u003c\/strong\u003e The 10X18 is a triplet (one magnifier made of three lenses), the 20X12 is 5-element (one magnifier made of five lenses).\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eType:\u003c\/strong\u003e jewellers' loupe (small, pocket-size, folds into its metal casing)\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOrigin \/ brand:\u003c\/strong\u003e we import these from China\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eCasing:\u003c\/strong\u003e metal\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eFinish:\u003c\/strong\u003e chrome\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003ePresentation \/ extras:\u003c\/strong\u003e soft leather pouch, plain cardboard box \u003c\/p\u003e\n\u003ch2\u003eFurther information\u003c\/h2\u003e\n\u003cp\u003eEverything you need to know about \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnifiers-and-magnification\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e magnifiers and magnification\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSee information about (and reviews of)\u003ca href=\"\/blogs\/magnifiers-microscopes\/loupes-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e loupes\u003c\/span\u003e\u003c\/a\u003e (small high-power folding jewellers' magnifiers).\u003c\/p\u003e\n\u003cp\u003eSee information about (and reviews of) \u003ca href=\"\/blogs\/magnifiers-microscopes\/binocular-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e binocular (head-worn) magnifiers\u003c\/span\u003e\u003c\/a\u003e- especially the \u003ca href=\"\/blogs\/magnifiers-microscopes\/binocular-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e surgeons-type.\u003c\/span\u003e\u003c\/a\u003e\u003ccr\u003e\u003c\/cr\u003e\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnifiers-for-the-partially-sighted-low-vision-aids\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e a guide to magnifiers for the partially-sighted\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eSee \u003ca href=\"\/blogs\/magnifiers-microscopes\/uv-ultra-violet-loupes\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e loupes with UV lights\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eVideo (electronic) magnifiers, \u003ca href=\"\/blogs\/magnifiers-microscopes\/video-magnifiers-compared\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e video magnifiers compared\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eProducts: see pocket microscopes and phone microscopes, \u003ca href=\"\/collections\/pocket-microscopes-including-phone-microscopes\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e click here\u003c\/span\u003e\u003c\/a\u003e.\u003c\/p\u003e\n\u003cp\u003eWith most magnifiers* magnification and working distance are related. \u003ca href=\"\/blogs\/magnifiers-microscopes\/magnification-calculator\" target=\"_blank\"\u003e\u003cspan style=\"color: #0000ff;\"\u003e Download our Excel sheet\u003c\/span\u003e\u003c\/a\u003e, enter a magnification to see the resulting working distance, enter a working distance to see the resulting magnification.\u003c\/p\u003e\n\u003cp\u003e* excluding surgeons-type, digital \u0026amp; phone magnifiers, and microscopes.\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759836315839,"sku":"10X18\/20X12","price":30.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/10x18-20x12-3.jpg?v=1629972874"},{"product_id":"light-for-surgeons-binocular-magnifier-binocmag-light","title":"Light for Surgeons Binocular Magnifier","description":"\u003cp\u003eLight for surgeon's-type binocular headband magnifier, fits the binocmag-S4 range.\u003c\/p\u003e\n\u003cp\u003eRechargeable battery pack, adjustable brightness.\u003c\/p\u003e\n\u003cp\u003eI don't do surgical operations. I fixed one of these to my bicycle helmet. A bit over-the-top but truly amazing!\u003c\/p\u003e","brand":"Quicktest","offers":[{"title":"Default Title","offer_id":39759859384511,"sku":"BINOCMAG-LIGHT","price":149.0,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0537\/3037\/7919\/products\/binocmag-light-1.jpg?v=1623671355"}],"url":"https:\/\/www.quicktest.co.uk\/collections\/sys-discount-group-4.oembed?page=3","provider":"Quicktest","version":"1.0","type":"link"}