1. Log on to the jade certification website. Query network. Many people don't know the website of Yuzheng number. Query the network. In fact, there are many ways to know the website address. First of all, it can be searched on the web page. What you should pay attention to in online search is to find official website first, and then you can make an inquiry.

2. First, open the browser commonly used 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.

3. There is generally a string of test numbers on the jade appraisal certificate, which is generally on the reverse side of the certificate. There must also be the telephone number and website address of the appraisal unit, which is generally on the front of the certificate. Call for advice, tell the test number and ask the other party to tell the appraisal result.

4. After entering the official website address of the certificate in the website address column, click Login to find the certificate inquiry column, and enter the certificate type and number: after entering it correctly, click OK, and the webpage will jump to the content page of the certificate to check the certificate information carefully. Do it directly on your mobile phone.

5. Network query. Now the appraisal certificate can be searched online. Most appraisal certificates generally have appraisal websites written on them. You can click on the websites above to check whether this gem exists, so as to confirm the authenticity of jadeite. Telephone inquiry.