Testers & scales calibrated before despatch

Gem & precious metal testers, since 1986

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
    £195.00
    Sale price
    £195.00
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  • Refractometer white
    Refractometer white - Photograph 1
    Regular price
    £299.50
    Sale price
    £299.50
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  • Refractometer fluid
    Refractometer fluid - Photograph 1
    Regular price
    £47.50
    Sale price
    £47.50
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  • Polariscope, mains-powered.
    Regular price
    £150.00
    Sale price
    £150.00
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  • Polariscope, handheld
    Regular price
    £23.50
    Sale price
    £23.50
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  • Polariscope, handheld, with built-in light
    Regular price
    £37.50
    Sale price
    £37.50
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  • Dichroscope
    Regular price
    £39.00
    Sale price
    £39.00
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  • Spectroscope
    Spectroscope - Photograph 1
    Regular price
    £35.00
    Sale price
    £35.00
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  • Light box for small items, e.g. gemstones
    Light box for small items, e.g. gemstones - Photograph 1
    Regular price
    £14.40
    Sale price
    £14.40
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  • HARDNESS PENCILS X8 (MOE 2 TO 9) + PLATES X3
    Regular price
    £92.50
    Sale price
    £92.50
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  • Hardness Pencils, set of 5
    Regular price
    £54.00
    Sale price
    £54.00
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  • Chelsea Filter
    Chelsea Filter - Photograph 1
    Regular price
    £27.00
    Sale price
    £27.00
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  • Pen torch
    Pen torch - Photograph 1
    Regular price
    £5.50
    Sale price
    £5.50
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  • Flexible light source, small
    Flexible light source, small - Photograph 1
    Regular price
    £7.50
    Sale price
    £7.50
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  • Set of Sample Diamond Imitations
    Regular price
    £222.00
    Sale price
    £222.00
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  • Cz (cubic zirconia).
    Regular price
    £6.00
    Sale price
    £6.00
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  • Computerised gemstone gauge (presid PGCG)
    Regular price
    £325.00
    Sale price
    £325.00
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  • Digital Diamond / Gem Gauge
    Digital Diamond / Gem Gauge
    Regular price
    £69.00
    Sale price
    £69.00
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  • Specific Gravity Kit (small) for testing gold, gemstones etc
    Specific Gravity Kit (small) for testing gold, gemstones etc
    Regular price
    £117.00
    Sale price
    £117.00
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  • Scriber / scratch-test for diamonds
    Scriber / scratch-test for diamonds
    Regular price
    £9.00
    Sale price
    £9.00
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  • Electronic densimeter (density balance), 0.001g, MD-200S by Mirage
    Regular price
    £1,250.00
    Sale price
    £1,250.00
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  • Electronic densimeter (density balance), 0.0001g, SD200L by Mirage
    Regular price
    £1,950.00
    Sale price
    £1,950.00
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