There is a national inspection agency.

Hebei Shijiazhuang jewellery jade products quality inspection station

No.50 Huainan East Road, Shijiazhuang City

The personal testing fee is 80- 100 yuan, and the merchant or member is 5- 10 yuan.

Dalian is like this. There will be differences from place to place, but there is not much difference. The appraisal institution only appraises what material it is, not including appraisal.

I hope the answer can help you.