Generally speaking, when you buy a diamond, if the merchant can show a GIA certificate, I think you will feel relieved. But since last year, the growing number of GIA arbitrage certificate phenomenon and fake certificates has been alarming.
What is the “GIA arbitrage certificate phenomenon”? Use the low-quality diamonds or even synthetic fake diamonds to arbitrage a higher-quality diamond with a GIA certificate, and make huge profits by shoddy and fake. – This is the GIA arbitrage certificate phenomenon.
We have shared with you that GIA California Lab found a high-temperature and high-pressure synthetic diamond that not only imitated the natural diamond waistline lettering but also applied a natural diamond certificate. This high temperature and high-pressure synthetic diamond weigh 1.76 carats, the color is equivalent to F, the clarity is equivalent to VS1, and the waist number is awarded the certificate number “GIA 217124”. In fact, GIA217124 should be a type Ia natural diamond weighing 1.74 carats, color D, and clarity VVS1. The natural diamond certificate was issued in 2015. The GIA made it clear that this behavior is “very bad commercial fraud.”
This year, this kind of certificate is more widespread. It is reported that the number of deck GIA diamonds in the market is even as high as 20%-30%, which is widely seen in online stores and offline stores. In addition to this set of diamonds that are difficult for consumers to distinguish, there are even more terrible fake GIA certificates! Last year, the Fuzhou diamond wholesaler Mr. He has a friend who sent him a few pictures of diamonds to check necklaces for girlfriend, he said the diamond was a carat diamond seeing from the picture, but the certificate was not true, and he suggested that his friend not to buy the diamonds. Thanks to the fact that Mr. He found that the papers and printed writings used in the GIA certificate were obviously fake and avoided the loss of his friend.
How should everyone distinguish authenticity when they get the certificate? Experts said that when jewelry operators and citizens stock and buy diamonds and precious gemstones, firstly, they must log in to the official website of the issuing authority to check the certificate number, and the fake certificate cannot find the number. Second, carefully check the certificate and verify the certificate, the print quality of the real certificate is very good and clear. The insurance method is to carry out a re-examination with the appraisal agency of the local quality and technical supervision department with valid shopping vouchers and certificates.
Jewelry experts said that consumers should try to choose the formal channels to purchase diamonds and gems family necklace with the certificate issued by the authority. The GIA certificate has a lot of information, such as identification data, certificate number, gem size, and 4C level. You can check the authenticity of the certificate by querying the certificate number on GIA’s official website. But what if the certificate is true and the diamond is an arbitrage certificate? In addition to the laser code of the diamond waist, you can also distinguish by comparing the weight and inclusion of the diamond. If it is more than one carat, it will not necessarily engrave the certificate number on the waist of the diamond. At this time, it is necessary to identify whether the diamond is the same one indicated by the certificate, according to whether the content of the certificate matches the diamond. The method is to confirm whether the weight of the diamond matches the certificate, because the weight of the diamond indicated by the certificate is very accurate, even if the diamond of the same grade is not the same weight as the certificate. Since it is impossible to have two diamonds with exactly the same connotation, it is more reliable to determine the correspondence between the physical object and the certificate by comparing the actual contents of the diamond with that indicated in the certificate. This requires professional equipment (high magnification magnifier) and a certain amount of expertise, please trust the appraisers to do this step to confirm is the best.