Address of the headquarters of the appraisal agency (Shanghai) Tel: Chenghuangmiao Technical Supervision Bureau Branch Address-National Gold and Silver Products Quality Supervision and Inspection Center Shanghai Jewelry Quality Supervision and Inspection Station 7 16 No.288, Fu You Road, No.64839409 Yishan Road * 2nd Floor, Yayi Jindian.

Other test centers:

Room 603, Donghua Meizuan, No.8/KLOC-0, Lishui Road, No.242 Wuyi Road, Shanghai Zhongbaobao Jade Testing Center

East China University of Science and Technology-Meilong Road 130, East China University of Science and Technology Testing Center, Floor 2, No.88 Lishui Road, No.64250882 *, if it is a simple appraisal, only need 10-20 yuan, and the certificate is 50- 100 yuan.

6322032 1 No.239 Fu You Road * 1 Laofengxiang Jewelry Store, 3rd Floor, National Light Industry Jewelry Quality Supervision, Inspection and Testing Center, No.432 Nanjing East Road.

Gemstone Testing Center of Tongji University siping road 1239 Tongji University Energy Building 659833826598 12 17.

Shanghai Jewelry Testing and Appraisal Institute, Room 204 1 1 (Canghaiyuan), Lane 2, Xue Qian Street, Penglai Road, Room 633056 19, Donghua Meizuan, No.8 Lishui Road.

Shanghai City God Temple Gold and Silver Jewelry Testing Center, the certificate of the second floor of the Jade Garden * Old Temple of the City God Temple is only recognized internally.