You can click on the jewelry appraisal certificate online and enter the "Jewelry Appraisal CertificateNo." to know the test results, and you can also see the signature of the tester and other information. If it is true, it will show the photos of jewelry and jade and the details of the jewelry and jade appraisal certificate; If false, nothing will be displayed. Of course, if the certificate information of an authentication institution is not stored in the database, it cannot be queried.

Secondly, certificates should be in one-to-one correspondence, that is, a thing is a certificate, and the certificate should have pictures and weights of the goods. Although some things come from a raw material and look similar in appearance, jade ornaments are not exactly the same. The certificate of one thing cannot prove the quality of the whole batch of things. In order to save costs, some merchants only use certificates as samples, and the goods in the photos are also very similar to the real thing. This does not mean that all the goods they sell are natural and do not conform to state regulations.

I hope the answer can help you.