If your jewelry is common jewelry (such as diamonds, jadeite, hetian jade, pearls, agate, etc. ), as long as it is a jewelry testing institution, it can be tested.

However, if your jewelry is an uncommon gem, or an ordinary gem after special treatment, it is necessary to go to a large testing institution for testing. Because it needs large instruments to detect, generally small monitoring stations do not have advanced large instruments.

Small certificates (few items can be tested, and the types of gems can be determined) are generally 5-1 in 8 yuan, while large certificates cost tens to several thousand yuan.

Small testing institutions: Peking University Testing Center and Dida Jewelry and Jade Appraisal Institute.

Big: National Jewelry Quality Supervision and Inspection Center () is headquartered in Beijing, with branches in various provinces, National Jewelry Supervision and Inspection Center, GIA, FGA, etc.