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Synthetic-diamond testers are used by professional jewellers and diamond dealers who know that they have a diamond and want to know the chances of it being synthetic or natural. This article explains how they work.
Electronic gem testers, how they work, what they test, and which are the best.
How to distinguish diamond from Moissanite.
How to test for diamond and how to avoid scams; Moissanite, diamond, and synthetic (lab-created) diamonds.
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Calibration instructions for Presidium Gem Tester II (PGT II).
Chelsea filter instructions
Test loose (not mounted) gemstones using nothing more than a weighing machine, an SG attachment, and water.
Just a tiny insight into the world of optics and how to test gemstones using standard (optical) gem testers.
Solve 99% of problems concerning diamond testers, Moissanite testers and multi testers.
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