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With its included Filter 1, the Gem Pen indicates HPHT and CVD lab-created diamonds, giving a fast pocket-sized first check before stones go to a desktop screener or lab.
No. It is a rapid triage tool for buying situations; stones it flags should be confirmed on a desktop screener or by a laboratory. Its strength is speed and portability.
Buyers, brokers and jewellers who inspect goods away from their desk and want a first-pass lab-grown check that fits in a shirt pocket.
Yes. We ship worldwide from Bangkok, Thailand.
