There are also identification certificates, but I still dare not determine. Picture above
4 thoughts on “I bought a chalcedony pendant, I don’t know if it is true, please identify”
Brent
The certificate is wrong. The picture, color, weight, structural structure of this certificate without chalcedony ... The first step: the logo (the certificate also depends on the sign) The testing agency issued by the certificate is approved by those special qualification certifications. The sign of the general certificate is: "CMA" "CMA" is the English abbreviation of China Metrology. It is a comprehensive certification and evaluation of the testing of the testing agency by the provincial -level people's governments at the provincial government at or above the provincial people's government at or above the provincial level. The sign refers that the agency is a unit that passes through the authentication review, and it is a qualification that any unit issuing a jewelry appraisal certificate. The inspection report with the "CMA" mark can be used for product quality evaluation, results and judicial appraisal, and has legal effect. Step 2: Appearance description (look at the model) The next is to confirm whether the jewelry and jade that you buy is consistent with the sample described in the certificate, including: photos of samples, weights on labels and certificates of certificates The weight of the top, the appearance of the jewelry corresponds to the description. photos are direct evidence that distinguish between different jewelry and jade. The identification certificate photos are clear and accurate, which will greatly increase the difficulty of falsification. However, in some cases, because the jewelry style is similar and the photos are similar, it is difficult to distinguish. At this time, the accurate weight is another valid data that can be verified. In addition to photos and weight, the identification certificate will also provide some distinctive appearance characteristics, such as the sugar color of jade, the bracelet's hand inch, and so on. 3: Detection content (most important content) This this step should be the test content we are most concerned about, and you must know what content on the certificate is the most important. This diamond grading certificate: The most important thing is the color level and clarity level of the diamond. Some certificates also have the proportion of diamonds. This metal jewelry purity inspection certificate: The most important is of course the type and content of precious metals. Jewelry and jade appraisal certificate: Test conclusion is the most important. According to national standards, natural jewelry and jade no longer indicate the word "natural", and gems that have been manually treated or synthesized must be clearly shown. (Treatment) "is a specific processing method, indicating that this ruby is a natural gem, but in order to improve its appearance, it has been manually handled by some method; Artificial laboratory is synthetic. "Remarks" column: Generally, some samples of relatively special states are encountered during general testing, which will be explained and indicated in the remarks. For example, in Hetian Yu's identification certificate, once the surface treatment is involved, the specific processing method will be indicated in the remarks. The 4th step: the official seal or inspection logo It to prevent the certification of the appraisal agency from being faked, the appraisal certificate must be covered with the official seal of the unit. The red official seal is often printed with the certificate. Covering seal. The large appraisal machines today are heavy anti -counterfeiting. For example, Xinjiang Rock Mine -Jade Monte Quality Inspection Station also added the Internet inquiry function in the new version of it opened in 2007. When querying, you need to enter the batch verification code and the verification code of the enterprise, so that consumers can use convenient ways to verify, and inquire online to understand the relevant information about the jewelry and jade.
Hello In the physical map This is a red chalcedony sculpture, genuine , but now the national standard is allowed to be optimized for color change. This red part is not natural is uniform in color. The accessories are considered 925 silver or silver jewelry Themore discount lottery promotion is mostly The overall real price is within 100 yuan. The starting price is no more than 150
Owner. Essence Essence This is the chalcedony, but its color is dyed. Essence Essence At present, dyeing is a process allowed by the country, so there is no way. Essence If you can accept dyeing, you can also say that it is natural. Essence Essence
The certificate is formal, why did the certificate not come up? Visual inspection is that high temperature changes to the color, which is allowed by chalcedony agate and is optimized.
The certificate is wrong.
The picture, color, weight, structural structure of this certificate without chalcedony ...
The first step: the logo (the certificate also depends on the sign)
The testing agency issued by the certificate is approved by those special qualification certifications. The sign of the general certificate is: "CMA"
"CMA" is the English abbreviation of China Metrology. It is a comprehensive certification and evaluation of the testing of the testing agency by the provincial -level people's governments at the provincial government at or above the provincial people's government at or above the provincial level. The sign refers that the agency is a unit that passes through the authentication review, and it is a qualification that any unit issuing a jewelry appraisal certificate. The inspection report with the "CMA" mark can be used for product quality evaluation, results and judicial appraisal, and has legal effect.
Step 2: Appearance description (look at the model)
The next is to confirm whether the jewelry and jade that you buy is consistent with the sample described in the certificate, including: photos of samples, weights on labels and certificates of certificates The weight of the top, the appearance of the jewelry corresponds to the description.
photos are direct evidence that distinguish between different jewelry and jade. The identification certificate photos are clear and accurate, which will greatly increase the difficulty of falsification. However, in some cases, because the jewelry style is similar and the photos are similar, it is difficult to distinguish. At this time, the accurate weight is another valid data that can be verified. In addition to photos and weight, the identification certificate will also provide some distinctive appearance characteristics, such as the sugar color of jade, the bracelet's hand inch, and so on.
3: Detection content (most important content)
This this step should be the test content we are most concerned about, and you must know what content on the certificate is the most important.
This diamond grading certificate: The most important thing is the color level and clarity level of the diamond. Some certificates also have the proportion of diamonds.
This metal jewelry purity inspection certificate: The most important is of course the type and content of precious metals.
Jewelry and jade appraisal certificate: Test conclusion is the most important. According to national standards, natural jewelry and jade no longer indicate the word "natural", and gems that have been manually treated or synthesized must be clearly shown. (Treatment) "is a specific processing method, indicating that this ruby is a natural gem, but in order to improve its appearance, it has been manually handled by some method; Artificial laboratory is synthetic.
"Remarks" column: Generally, some samples of relatively special states are encountered during general testing, which will be explained and indicated in the remarks. For example, in Hetian Yu's identification certificate, once the surface treatment is involved, the specific processing method will be indicated in the remarks.
The 4th step: the official seal or inspection logo
It to prevent the certification of the appraisal agency from being faked, the appraisal certificate must be covered with the official seal of the unit. The red official seal is often printed with the certificate. Covering seal.
The large appraisal machines today are heavy anti -counterfeiting. For example, Xinjiang Rock Mine -Jade Monte Quality Inspection Station also added the Internet inquiry function in the new version of it opened in 2007. When querying, you need to enter the batch verification code and the verification code of the enterprise, so that consumers can use convenient ways to verify, and inquire online to understand the relevant information about the jewelry and jade.
Hello
In the physical map
This is a red chalcedony sculpture, genuine
, but now the national standard is allowed to be optimized for color change. This red part is not natural
is uniform in color. The accessories are considered 925 silver or silver jewelry
Themore discount lottery promotion is mostly
The overall real price is within 100 yuan. The starting price is no more than 150
Owner. Essence Essence This is the chalcedony, but its color is dyed. Essence Essence At present, dyeing is a process allowed by the country, so there is no way. Essence If you can accept dyeing, you can also say that it is natural. Essence Essence
The certificate is formal, why did the certificate not come up? Visual inspection is that high temperature changes to the color, which is allowed by chalcedony agate and is optimized.