At present, there are more than 100 CMA-certified jewelry appraisal institutions in China. The appraisal certificates issued by these institutions are legally responsible and trustworthy. At the same time, however, some unscrupulous traders colluded with some private workshops to make false certificates, or find “certificates†without qualification certification, which not only disrupted the market but also brought great shopping risks to consumers. So how do we choose an authoritative certificate?
1. The certificate must be printed on the certificate.
There are four types of qualifications for institutions: CAL certification, CMA certification, CNAS certification, and ILAC-MRA certification. Among them, CMA is a compulsory certification of the national appraisal organization. Generally speaking, if the certificate does not have CMA certification, then the certificate is extremely inaccurate and extremely unreliable.
On the reverse side of the certificate, in addition to the qualifications of the institution, the name, contact number, address, and website address of the identification institution must be available. When the certificate is obtained, the telephone verification certificate of the institution can be called for the first time. False, or log in to the official website of the organization to check the authenticity of the certificate.
In short, with the contact information of the organization, we can verify whether the certificate is a false certificate.
3. The certificate must have the signature of the inspector
According to the first paragraph of Article 14 of our Criminal Law: “I know that my actions will endanger the results of society, and I hope or let this result happen... It is a deliberate crime.†This is the intention of “knowing†in China’s criminal legislation. The clear definition of the concept of crime, if the appraisal agency knows the fake fraud, it is necessary to bear joint and several liability, which is why the name of the tester and the reviewer (auditor) need to be written on the certificate.
4. The identification content on the certificate is more comprehensive and detailed.
The most important information for an authentication certificate is the content of the test. Different categories of jewelry information have different focuses:
Diamond classification certificate
The most important concern is the 4C grade of the diamond: color grade, clarity grade, cut grade, weight. Of course, not all diamonds have a 4C standard. The American Gemological Institute (gia) standard is a diamond with a weight greater than 0.3 carat to produce a diamond classification certificate.
Precious metal jewelry purity inspection certificate
The most important concern is the type and amount of precious metals.
Jewelry and jade identification certificate
The conclusion of the test is the most important. According to national standards, natural jewellery and jade are no longer marked with the word "natural", and artificially processed or synthetic gems must be clearly stated, such as: the conclusion is "ruby", indicating that this ruby ​​is pure natural output; "ruby (Processing) is an indication of the specific treatment method, indicating that this ruby ​​is a natural gemstone, but has been artificially treated in some way to improve its appearance; "synthetic ruby" means non-naturally produced ruby, but pure Artificial laboratory synthetics. “Remarks†column: Samples that encounter some relatively special conditions during the general inspection process will be explained on the remarks. For example, in the identification certificate of Hetian jade, when the surface treatment is involved, the specific treatment method will be indicated in the remarks.
Jade's identification certificate will generally be marked as: jade (A goods), bleaching and injection processing jade (B goods), dyeing treatment jade (C goods).
5. The identification item on the certificate must be machine printed
The state is mandatory for the certificate to be printed for the machine, and the certificate that is manually filled in does not have any reference value.
If the above five information is available on an authentication certificate, the certificate is more authoritative.
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