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Iroishi Checker

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Disclaimer

This app is an observation aid, not a substitute for laboratory testing.
For formal certification, consult an accredited gem lab.

Price ranges shown are general market indications.
They do not represent guaranteed buying or selling prices.

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Primary sources: GIA, CGL and equivalent labs. Last reviewed: 2026-04-28

Operated by Shou Kitano — Licensed antique dealer, Kanagawa Prefecture Public Safety Commission, No. 452680013478

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141 Stones