How to distinguish the authenticity of gem identification certificate;

1. Stamp and anti-counterfeiting mark: Generally, the gem appraisal certificate will have stamp and anti-counterfeiting mark on it, most of which are steel seals, and the appraisal certificate without stamp must be fake; The certificate will also have the signature of the appraiser and the signature of the inspector.

2. The photos and parameters are consistent with the real thing: the contents in the gem identification certificate are completely consistent with the characteristic parameters such as the weight, color and size of jadeite. If it is too different from the real thing, the certificate is likely to be forged.

3. The certificate must be marked with "CMA": the identity certificate will be marked with "CMA" in capital. It should be noted that "MA" is in the capital letter "C"; In addition, there is also "CAL" which refers to the symbol of the testing and inspection institution recognized by AQSIQ; "CNAS/ILAC-MRA", a commonly recognized symbol, can be internationally recognized.

4. Online inquiry function: Now many jade appraisal institutions will have their own official website, and the certificates issued will leave contact information such as telephone number or official website for direct online inquiry function. A fake appraisal certificate certainly has no online inquiry function. Enter the test number, total weight and other parameters on the website to check the authenticity of the appraisal certificate.