According to the Quanzhou Evening News, the “diamond†that was purchased for nearly 100,000 yuan turned out to be a high-imitation product synthetic carbosil (commonly known as Mosang). Last week, Mr. Su, a citizen who sent a friend who lived in the United States to buy a "diamond" weighing 1.3 carats and 0.9 carats, went to the test and found out that he was a friend.
The price difference between the two is ten times
"The difference between Mozambique and diamonds, even the diamond detection pen (thermal conductivity meter) can not be distinguished, but a closer look will find that its fire color is stronger than diamonds." Liu Zuoyu, a quality jade quality tester who tests Mr. Su's "diamond" According to the reporter, the "diamond" certificate provided by Mr. Su is in English, and the certificate is marked with the English words of Moissan. “The seller may expect that Mr. Su does not understand English and sells Mozambique to him at a high price for diamonds.†According to reports, under normal circumstances, the price of high-quality Moissanite is only 10%-20% of the same grade diamond.
"This kind of synthetic gemstone is too deceptive. Last year, Quanzhou discovered that many jewelry stores have recycled the Mosang stone at the diamond recycling price. For this, the jewelry store can only eat dumb losses." Liu Zuoyu told Reporter, not long ago, when he identified a batch of diamonds recovered from a jewelry store, he discovered a Mosang stone mixed with Mozambique in true hardness, clarity and refraction. Very similar, this has fooled the eyes of the jewelry store owner and its instruments.
“In the jewellery industry, diamond-recycling workers typically use diamond test pens to detect diamonds. However, this highly imitation Moissanite can detect the pen's 'eyes' through diamonds, which makes it difficult for recyclers to distinguish between true and false.†Liu Zuojun told reporters that the professional recycling of diamonds is still the case, and ordinary consumers are even more difficult to distinguish.
According to reports, if you place the Moissanite under the microscope, you will find that Mosang stone can see the ghost image from some angles, and the natural diamond is an equiaxed crystal system. It is impossible to have such birefringence.
The laser code on the diamond must match the certificate
The reporter learned that as the king of gems, diamonds are expensive, and many "imitation goods" have a broad space for growth. From the original lead glass to synthetic zircon, to the current Moissanite, many types of counterfeit diamonds have been sold as real diamonds by some unscrupulous merchants. And how do consumers practice a pair of "eyes", and protect themselves from spending money?
“For the average consumer, the safest way is not to identify it yourself, but to purchase it from a regular channel. You must look at the certificate when you purchase it. The certificate must be issued by a qualified laboratory, such as the GIA certificate of the American Gemological Institute, National Jewelry. The certificate issued by the Jade Quality Supervision and Inspection Center, etc.. The person in charge of a jewelry store in the East Street of the Central City told the reporter that the general score (the weight of the diamond) is large, and there are laser codes on the diamond waist that have been tested by the authority. When purchasing diamonds, consumers can ask the jewelry store to provide a magnifying glass to see if the laser code on the diamond is consistent with the certificate.
In addition, consumers must ask the jewelry store for invoices when purchasing jewelry. If you have doubts about the quality of the jewelry, you can bring the jewelry and invoice to a qualified inspection agency for re-evaluation.
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