2. Website inquiry. Generally, most formal and legal jade appraisal institutions have their own websites to provide inquiries about their appraisal certificates. As long as you log in to the website, you can find the relevant data of the certificate on the website by entering the number of the jade identification certificate and other contents as prompted by the website. Telephone inquiry.
3. It can be done directly on the mobile phone. Open Baidu app or WeChat, scan the QR code below the jade photo, and you can go directly to the official website certificate content page, see the certificate information, and carefully check the certificate content to make sure it is correct.
4. Generally on the front of the certificate, as shown in the figure below. Call for advice, tell the test number and ask the other party to tell the appraisal result. Or log in and visit online, enter the test number and query the appraisal results.
5. First, open the commonly used browser on the computer. Find and search on the browser homepage, enter "Jade Query Certificate official website" and search. Find the online query and verification system of jewelry certificate in the search results, and click Enter.
6. The certificate number or inspection number on the certificate can be used to check whether the purchased goods are consistent with those on the certificate. If there is a code on the jade, it can also be compared with the code on the certificate. Secondly, the refractive index on the certificate, 66, is the most common structure of jadeite and the most important feature that distinguishes jadeite from other jadeites.