What is the authority of Japan's national treasure jewelry appraisal certificate? It is the branch of AGL in Japan. What is the authority of this institution?

Domestic accreditation bodies only provide re-examination for a few international certificates such as GIA and HRD, and there are some differences between Japanese certificates and international accreditation standards. Re-inspection is not allowed in China, only re-inspection.

Japanese AGL is authoritative in Japan, but there is still a gap for the world.

http://www.agl.jp/index.html

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Excellent composition

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