*NEW* GemPen ® Synthetic Tester
*NEW* GemPen ® Synthetic Tester is backordered and will ship as soon as it is back in stock.
Hexagonal Pen Grip Interchangeable
Filters USB-C Standard For Recharging Dust & Rain Proof Shock resistant, with protective casing
Easy to use
Hard case designed to be used as darkroom
GemPen Premium is the most complete kit that we have to offer; It includes all the different filters to screen and analyse Diamonds and to give indications on flame-fusion (Verneuil) lab-created blue Sapphires. The LW Filter 4 (in combination with Filter 1) helps the user to distinguishing between a natural fluorescing diamond and a synthetic one. Filters 2 and 3 are used to screen for Heat, Beryllium and other treatments.
Below is a Tutorial Video that shows how to screen diamonds using GemPen:
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