Shenzhen National Jewelry Inspection and Testing Center is a professional quality inspection institution for jewelry and jade authorized by the relevant national authorities according to law, and it is the authority on jewelry and jade inspection in China. With CMA and CNAS inspection qualification certificates, it is an impartial and independent third-party jewelry and jade testing laboratory, and its reports and certificates have legal effect. Its reputation is not as good as that of some provincial or national appraisal stations, but its certificates and reports are true and reliable.