At present, there are 6 jewelry testing institutions certified by the State Bureau of Quality and Technical Supervision, namely National Jewelry Appraisal Center, Gemological Appraisal Center of China Gemological Association, National Jewelry Appraisal Center, Gemological Appraisal Center of Peking University, Gemological Appraisal Institute of Gaode and Gemological Appraisal Center of China Geo University.

gem appraisal center of peking university

Address: Geoscience Building, Peking University, Haidian District, Beijing. Postal code: 10087 1. Tel: 0 10-62755676.

China Geo University Gemstone Testing Center

Address: No.29 Xueyuan Road, Haidian District, Beijing

Tel: 0 10-82323039

National gem detection training center

Address: Building 0/9, Xiao Huang Zhuang Road, Anwai Street, Beijing.

Tel: 0 10-84273876

National Jewellery Quality Supervision and Inspection Center

Address: No.2, A Datun Road, Chaoyang District, Beijing

Tel: 010-64871971

National Jewellery and Jade Quality Supervision and Inspection Center

Address: Building 0/9, Xiao Huang Zhuang Road, Anwai Street, Beijing.

Tel: 0 10-84273700

Name of Association: Jewelry and Jade Jewelry Management Center of Ministry of Land and Resources

Address: Building 0/9, Xiao Huang Zhuang Road, Anwai Street, Beijing.

Tel: 0 10-84274008