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It is almost impossible to observe any difference in the top five or six color grades of the rough diamond. Nevertheless, the differences exist an...

Colour: Transparent+White Material: AcrylicSize: 180x35x20mm, 7.09" x 1.38" x 0.79"

The GemPen Filters are to be used as Add On Filters to be used with the GemPen Diamond Screener for testing and verifying Diamond, Rubies and Sapp...

The GemPen® provides professional users with the means to efficiently determine whether a diamond, ruby, or sapphire is natural, synthetic (man-mad...

The GemPen® provides professional users with the means to efficiently determine whether a diamond, ruby or sapphire is natural, synthetic (man-made...

Diamond Colour GradingGemPen Darkroom allows the professional user to create a portable environment, making it easier to more accurately interpret ...

Varna-D quickly grades a diamond’s colour with precision, speed and repeatability! This self-contained device comes with inbuilt lights, processor ...

Kern ORA 1GG Gemmology/Jewellery Refractometer Details Need to measure the refractive index of jewellery? You need Kern's ORA 1GG. This specially d...