1. Only natural A goods will issue the certificate of "Jade" result. If it is grade B jadeite, one of the appraisal results in the certificate will be marked as "jadeite (treatment)", "jadeite (glue injection)", "jadeite (grade B quality)" or "jadeite (optimization)". C Jade will be marked with "Jade (Dyed)".

2. First, observe the English abbreviation marks on the jade certificate, such as whether there are CMA and other marks. If there is, it means it is a genuine jade certificate.

3. Look at this sign. On the real jade certificate, the most conspicuous signs are several English abbreviations, and the common signs are "CMA", "CAL" or "CNAL". CMA is a sign that the measurement certification of testing institutions is qualified, and the institutions with this sign are legal testing institutions.

4. Look carefully at whether the shop opening organization that issued the jade jewelry inspection certificate has the right to issue the jade appraisal certificate.

5. Distinguish the authenticity of the jade certificate by telephone, website, SMS and QR code scanning.

6. To distinguish the authenticity of the jade certificate, we should pay attention to the following details: 1. First, check whether the certification body issuing the certificate is the authoritative certification body for national qualification certification. 2. Whether the certificate is stamped with steel seal and signed by two appraisers. 3. The contents of online inquiry certificate and online certificate must be completely consistent with the entity certificate.

How to identify the jade certificate? How to identify jadeite certificate

See the printing quality of jadeite appraisal certificate. The real certificate looks very textured, with good printing quality, clear handwriting and standard typesetting. However, the printing quality of fake certificates is rough, the handwriting is not easy to read and the typesetting is not standardized.

Observe the English abbreviation marks on the jade certificate, such as whether there are CMA and other marks. If there is, it means it is a genuine jade certificate. See if the jade certificate has a number. If it has a number, it means that it is a real jade certificate. Otherwise, if it has no serial number, it means it is a fake jade certificate.

Shape and color: the shape and color of jade carving are most intuitive in front of your eyes. Total mass: the weight of jadeite.

Looking at the appraisal institution, the first thing to check carefully is whether the appraisal institution of the jade appraisal book has the right to issue the jade appraisal certificate. According to the division of industry departments, there are mainly five kinds of jade appraisal institutions. Quality inspection system, geology and mineral resources system, education system, trade associations, private enterprises.

Only natural A goods will issue the certificate of "Jade" result. If it is grade B jadeite, one of the appraisal results in the certificate will be marked as "jadeite (treatment)", "jadeite (glue injection)", "jadeite (grade B quality)" or "jadeite (optimization)". C Jade will be marked with "Jade (Dyed)".

Jade identification certificate identification: English logo, the certificate must bear the "CMA" logo, otherwise it is not credible; Certificate number, the number corresponding to the certificate can be found on the website; Appraisal institutions to see if they have the right to issue certificates.

How to test the authenticity of jade certificate

1. On the back of the observation card, there is the official website of the country. This website is the website of government agencies and departments, not the website of private enterprises, and is filed in the Ministry of Industry and Information Technology. Open the query URL and click the "Certificate Query" menu bar. Officially entered the jade appraisal certificate query interface.

2. Look at the printing quality of the jade appraisal certificate. The real certificate looks very textured, with good printing quality, clear handwriting and standard typesetting. However, the printing quality of fake certificates is rough, the handwriting is not easy to read and the typesetting is not standardized.

3. The methods to check the authenticity of jadeite identification certificate include official website verification and telephone inquiry. Official website verification websites generally have the websites of appraisal institutions when inquiring about jade appraisal certificates. Log on to the website and inquire according to the serial number of the appraisal certificate.

4. Distinguish the authenticity of the jade certificate by telephone inquiry, website inquiry, SMS inquiry, QR code scanning inquiry, etc.

5. Observe the English abbreviation marks on the jade certificate, such as whether there are CMA and other marks. If there is, it is a genuine jade certificate. See if the jade certificate has a number. If it has a number, it means that it is a real jade certificate. Otherwise, if it has no serial number, it means it is a fake jade certificate.

6. Jade identification certificate can be inquired by telephone, online, SMS and QR code. Generally speaking, there will be a telephone number on the jewelry appraisal certificate issued. You can call the above number to inquire about the existence and authenticity of jade.

How to distinguish the authenticity of jade certificate _

Only natural A goods will issue the certificate of "Jade" result. If it is grade B jadeite, one of the appraisal results in the certificate will be marked as "jadeite (treatment)", "jadeite (glue injection)", "jadeite (grade B quality)" or "jadeite (optimization)". C Jade will be marked with "Jade (Dyed)".

See the printing quality of jadeite appraisal certificate. The real certificate looks very textured, with good printing quality, clear handwriting and standard typesetting. However, the printing quality of fake certificates is rough, the handwriting is not easy to read and the typesetting is not standardized.

Look carefully at whether the shop opening organization that issued the inspection certificate of jadeite jewelry has the right to issue the jadeite appraisal certificate.

How can Thangka tell the truth from the false?

1, five senses. The facial features should be moderately symmetrical in size and perfectly connected with skin color. Especially opening eyes, opening eyes is the last process and the most difficult one in a Thangka painting. When you open your eyes, your left and right eyeballs should be symmetrical, the size should be the same, and you should draw them in the middle of your eyes. Cracks.

2. The identification of Thangka painters mainly includes the following aspects: measurement is the most basic and important factor to determine the quality of Thangka, and even a small mistake may affect the artistic value of Thangka.

3. If it is a carrier, it is obvious that Thangka is painted on cloth, and only a few are painted on things like leather, which is called leather pyrography. So thangka must be made of cloth, and most of them are made of cloth. If it is performance material, this kind is also available, relatively few, and it is called Duixiu Thangka.