Collections: Optical & mechanical diamond and gem testers

Optical (and mechanical) testers tend to be more 'accurate' than electronic testers, but also more specialist, designed for the gemmologist rather than the hobbyist / scrap dealer / antiques dealer - details.
  • Refractometer
    Regular price
    £162.50
    Sale price
    £162.50
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    Out of stock
  • Refractometer white
    Refractometer white - Photograph 1
    Regular price
    £249.58
    Sale price
    £249.58
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    Out of stock
  • Refractometer fluid
    Refractometer fluid - Photograph 1
    Regular price
    £39.58
    Sale price
    £39.58
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    Out of stock
  • Polariscope, mains-powered.
    Regular price
    £125.00
    Sale price
    £125.00
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    per 
    Out of stock
  • Polariscope, handheld, with built-in light
    Regular price
    £31.25
    Sale price
    £31.25
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    Out of stock
  • Dichroscope, tube
    Regular price
    £35.42
    Sale price
    £35.42
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    Out of stock
  • Spectroscope
    Spectroscope - Photograph 1
    Regular price
    £32.50
    Sale price
    £32.50
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    Out of stock
  • Light box for small items, e.g. gemstones
    Light box for small items, e.g. gemstones - Photograph 1
    Regular price
    £14.58
    Sale price
    £14.58
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    Out of stock
  • HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3
    Regular price
    £96.00
    Sale price
    £96.00
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    per 
    Out of stock
  • Hardness Pencils, set of 5
    Regular price
    £66.25
    Sale price
    £66.25
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    Out of stock
  • Chelsea Filter
    Chelsea Filter - Photograph 1
    Regular price
    £24.58
    Sale price
    £24.58
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    Out of stock
  • Pen torch
    Pen torch - Photograph 1
    Regular price
    £4.58
    Sale price
    £4.58
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    Out of stock
  • Set of sample diamond simulants
    Regular price
    £185.00
    Sale price
    £185.00
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    Out of stock
  • Cz (cubic zirconia).
    Regular price
    £5.42
    Sale price
    £5.42
    Regular price
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    per 
    Out of stock
  • Computerised gemstone gauge (presid PGCG)
    Regular price
    £299.17
    Sale price
    £299.17
    Regular price
    Unit price
    per 
    Out of stock
  • Specific Gravity (density) Kit. Small, for testing gemstones
    Specific Gravity Kit (small) for testing gold, gemstones etc
    Regular price
    £95.83
    Sale price
    £95.83
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    per 
    Out of stock
  • Scriber / scratch-test for diamonds
    Scriber / scratch-test for diamonds
    Regular price
    £7.50
    Sale price
    £7.50
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    per 
    Out of stock
  • Spectroscope, prism design, full-size.
    Spectroscope, prism design, full-size.
    Regular price
    £49.58
    Sale price
    £49.58
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    Out of stock
  • Electronic densimeter (density balance, specific gravity), 200g / 0.001g, MD-200S by Mirage
    Regular price
    £745.83
    Sale price
    £745.83
    Regular price
    £1,041.67
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    per 
    Out of stock
  • Dichroscope, folding
    Regular price
    £32.92
    Sale price
    £32.92
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    per 
    Out of stock
  • Dichroscope and "Chelsea Filter", folding
    Regular price
    £49.58
    Sale price
    £49.58
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    per 
    Out of stock
  • Diamond and gem gauge, digital (oblong)
    Regular price
    £46.50
    Sale price
    £46.50
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    Out of stock
  • Set of diamond colour-grading stones
    Regular price
    £232.50
    Sale price
    £232.50
    Regular price
    £112.00
    Unit price
    per 
    Out of stock