GUARDIAM ®
Guardiam® is an exclusive hardness tester: it scratches the surface of any known diamond substitute, as well as its imitations (Moissanite, zirconium oxide, YAG...). It is also perfectly effective on new gems coated with diamond. The crystals that cover the tip of the Guardiam® are made from an extremely rare mineral, they are less hard than diamond but harder than any other known material (natural or synthetic gems).
No more doubts, errors or approximations
The diamond tester Guardiam® is:
✓
Precise
Ability to scratch a very small stone
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Portable
Smaller than a pen
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Usable in all conditions
Even on a dirty or coated stone
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Resistant
Robust and durable construction
⚡
Autonomous and economical
Requires no battery or other form of electrical power