The difference between jewelry and jade jewelry appraisal certificate and diamond-encrusted grading certificate is that the appraisal certificate identifies the name of jewelry and jade variety;

Diamond grading certificate is to grade diamonds! (The premise is that diamonds have been identified) Generally, diamonds with better quality will be provided with diamond grading certificates! There are two kinds of diamonds without grading certificate: 1. The low grade of this diamond will affect sales. Might as well not do it. 2, the price of the appraisal certificate is usually cheaper than the diamond grading certificate, in order to save money! Generally, the first situation is mostly! Certificate authentication: 1, check whether there is a steel seal, and look at the certificate horizontally! 2, there are websites that can be queried online! 3. If you have a phone, you can call for advice! There are other identification methods, these three are more commonly used and easy to use! ! ! Hope to adopt