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Where can I get the national certificate of gem inspection?
National Jewellery and Jade Quality Supervision and Inspection Center

Jewelry and jade appraisal must go to the provincial national jewelry and jade quality supervision and inspection center for appraisal, pay a certain inspection fee, the price will not be very high, about tens of RMB, and then issue a certificate to you. Such an institution is the most reliable. The so-called appraisal center established in society is very unprofessional and has no testing equipment. It is completely boasted, but the appraisal of jewelry and jade is often inflated, and its purpose is to earn 1% appraisal fee.