Gemstone Knowledge
SOOKJAI KNOWLEDGE
Gemstone Knowledge
A considered guide to gemstones — from colour and cut to origin, treatment and the stories behind each stone.
Certification
What a Gemstone Report Can — and Cannot — Tell You
A gemstone laboratory report can establish important facts about identity, treatment and sometimes origin, but it cannot replace the visual and personal experience of the gemstone itself.
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Certification
How to Read a Gemstone Laboratory Report
A clear guide to reading a gemstone laboratory report, from verification and identification to treatment, geographic origin and comments.
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