1, check the qualification of appraisal institutions; After you get the jade appraisal certificate, you must first check whether the appraisal institution marked on the certificate has the appraisal qualification. You can query whether the organization is true and effective through the network.

2. Look at the jade appraisal certificate, first of all, look at whether the inspection certificate is printed with any of the three marks of CMA, CAL and cncal. All legally issued certificates must have the signature of the appraiser on the back, and they must have two or more signatures in order to have legal benefits.

3. English logo: Generally, jade certificates are marked with CMA, CAL, CNAL, etc. One or more of them represent the qualification of appraisal institutions, among which "CMA" is necessary, and it is not credible without it.

4. The identification of the certificate of jade bracelet can be carried out by checking the mark of the certificate and checking the authenticity of the certificate.

5. SMS query. Some appraisal institutions also provide short message inquiry. Consumers only need to edit the certificate number into a short message and send it to the designated number according to the instructions on the jade appraisal certificate, and the relevant information of the jade appraisal certificate will be sent back to the consumer's mobile phone by short message for consumers to inquire and compare.