Appraisal institutions on the appraisal book

For novices or just getting started, most of them will refer to the jade appraisal book when purchasing and distinguishing the jade and the true and false. The careful person may find that sometimes the appraisal certificate seems to be unreliable, and the jade appraisal organization does not say anything. The quality of the certificate printed is also doubtful. In order to be deceived, the following tips will teach you to identify the authenticity of the certificate.

First, look at the inspection agency. The state has strict qualifications for the quality certification body of jewellery and jade. Only by passing the certification, the certificate issued is valid. The jewellery and jade identification certificate issued by it has one of CMA, CAL and CNACL, especially the first one is CMA, which is the certification mark required by the state. The CMA is a measurement certification accreditation body composed of countries or provinces. CAL is the mark of the inspection and inspection agency approved by the national quality inspection. CNACL is a national laboratory and is recognized internationally.

Second, look at the test content. Including jewelry name, color, clarity, total mass, density, refractive index and other items, in the national certification of jewelry and jade testing institutions, these items are very strict.

Third, see the signature of the appraiser. The certificate of authentication needs to be signed and confirmed by two appraisers to be valid. One is the appraiser and the other is the reviewer.

Fourth, the seal should be a stamp, and the above font is clearly identifiable.

5. The number of the certificate on the back of the certificate shall be the same as the number posted on the back of the object.

Six, some certificates can be queried online or SMS. If the certificate is issued by a formal appraisal agency, the jade can be found by entering the number.

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