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Summary
An 8-segment LED indicates diamond or not diamond.
Battery (supplied)
To read the article about diamond testing,
Technical
DISPLAY
8-segment LED display (turns blue and bleeps on diamond).
PHYSICAL
Dimensions: 6¼"X1½"X¾" 155X38X20mm
Weight: 105g
Tip: can test stones down to 0.03ct (3pt) in size, smaller if you have good eyesight and a steady hand.
Operating temperature: recommended between 18 and 27 degrees C (64 to 81 degrees F)
POWER
Power: one PP3 battery (supplied)
Warm-up time when switched on: 30 to 40 seconds
Warm-up time between tests: 5 to 10 seconds
ACCESSORIES / PRESENTATION
Carrying case.
Battery included.
Guarantee / Reliability
Reliability
My best estimate is that this one will give the correct reading about 80% to 85% of the time at room temperature. To see how this compares with other "Diamond Selector II" diamond testers click here.
This is an awful lot better than the very cheap Diamond Selector II testers, but it's still the "bargain basement" of diamond testers, you will not get the consistency or reliability of better testers.
Returns under guarantee: one year
Returns rate (those that are returned to us during the guarantee period): less than 5%
Returns under guarantee: Providing we're quite certain that it is definitely faulty, we will send a new one. Before returning an item please check the trouble-shooting guide - if, after reading this, you are quite certain it is faulty, return it to us.
Returns out of guarantee: not worth repairing, best to put it in the bin and buy another one.
Review
Not all DIAMOND SELECTOR II diamond testers are the same, for details click here.
PROS
It doesn't cost much, and it's made with good quality electronic components, unlike the very cheap versions of Diamond Selector II models you see on the internet, so there's a good chance it will last beyond its 1 year guarantee period. I would guess that you will get a correct result about 80% of the time (maybe 85%), that's dramatically better than with identical-looking Diamond Selectors you see on eBay and Amazon.
CONS
My best estimate is that it will give the correct reading about 80% of the time, maybe 85% (providing it's room temperature) - for details click here. Although this is better than the very cheap Diamond Selector II models you see on eBay and Amazon, you must accept that when you pay this little…you get what you pay for.
A chart of figures is printed on the tester, showing you how to set the sensitivity, this can be a little confusing if you're easily confused by charts of figures.
This is a diamond-only tester, it will not test Moissanite, that means that a Moissanite will show up as 'diamond' on this tester.
Disclaimer
All 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.