Depends on what agency you're looking for. The higher the level, the higher the cost. Also, it depends on how many goods you want to identify. The unit price of a product is different from hundreds of thousands. One product, national inspection 50~ 100, another 50 or so, cheap 20 ~ 30. But not all things are appraised by appraisal institutions, and some are not given certificates regardless of whether they are true or false.

Related instructions

Because the level of counterfeiters is getting higher and higher, and the means are constantly improving, it is more and more difficult for collectors to distinguish between true and false. The best way is to let the merchant provide the professional appraisal certificate of the goods. Different from the antique collection market, the field of jewelry appraisal has a scientific mineralogical basis, accurate large-scale instruments and corresponding national standards promulgated and implemented.

Since 1994, the first gem and jade appraisal center in Peking University was approved, a number of appraisal institutions have been established, among which four national-level testing centers in Beijing, namely Peking University, Dida University, National Inspection Center and State-owned Assets, are large in scale and high in level.

Consumers are advised to consult or issue legally binding certificates to the most advanced professional large-scale testing institutions or registered quality inspectors recognized by the State Administration of Quality Supervision (CGC, 2065,438+02, with 65,438+0,200 people nationwide) before purchasing, so as to identify the authenticity and arbitrate disputes. Don't easily believe the self-proclaimed "experts" and irresponsible statements from unknown sources.

Refer to the above content: Baidu Encyclopedia-Jewelry Identification (mineralogical terms)