Where is the Jintan Jewelry Appraisal Center?

Changzhou Bureau of Quality and Technical Supervision Gold Jewelry Product Quality Inspection Station Address: No.323 Laodong West Road, Zhonglou District, Changzhou City, Jiangsu Province. Address: No.323 Laodong West Road, Changzhou Tel: 05 19-86644892.

The National Jewelry Appraisal Center is a national inspection. The full name is the National Jewelry and Jade Quality Supervision and Inspection Center, and the address is Zhuang Road, Dajie, Andingmenwai, Beijing.

Linyi Municipal Bureau of Quality and Technical Supervision. No.96, Customs Road, Linyi City. Tel: 0539-83 16270. They have gold, silver and jewelry appraisal. Generally, the appraisal cost of jade is also cheap. You can also issue corresponding reports and certificates.

You can take it to the gold shop to identify the color. Gold shops are usually identified by being divided into two parts. Distinguish adulteration: whether gold has white bright spots: cut gold bars or gold jewelry with scissors and observe its section with a magnifying glass. If you see white bright spots, because gold and iridium can't blend together, it means that gold is doped with iridium.