How do zircons and diamonds differ? The zircon has a large specific gravity, the same volume of zircon is heavier than the diamond; the zircon has similar luster on each side, and the "fire" is not as beautiful as the diamond; the zircon is observed with a magnifying glass, and the bottom surface and the ridge line have obvious double shadows, and the diamond is No.
Because of the low value of artificial zircon itself, it is not a mainstream product for many brand-name stores that specialize in jewellery, but it is not without. Many consumers are also worried that diamonds bought in jewelry stores may be low-priced zircons. How do consumers identify this “like diamond� People in the industry have warned that a regular formal jewelry store will be equipped with an instrument called a "thermal guide". Consumers can take the initiative to ask for testing and protect their rights and interests. In addition, zircon jewelry is worn for a long time, it will wear out or the color will become dim, so you need to know clearly when buying jewelry.
The eye of the eye recognizes the diamond zircon
1. Zircon has a large specific gravity, and the same volume of zircon is heavier than diamond;
2. The gloss of each side of zircon is similar, "fire" is not as beautiful as diamonds;
3. Observe the zircon with a magnifying glass. The bottom surface and the ridge line have obvious double shadows, but the diamonds do not.
Buy diamonds, fear of zircon, regular jewelry store, identification equipment
Zircon is also known as the “USSR drillâ€. The light penetration of the original stone is very close to that of the diamond. The producers originally wanted to introduce zircon into the market with diamond substitutes. But because zircon and diamonds are similar in appearance, consumers who don't know how to do it can easily confuse the two. When zircon first entered the market, there was a jewellery store that sold zircon as a diamond. "But with the improvement of the means and methods of identification, the consumer's awareness of prevention is relatively high, and the situation of unscrupulous zircon counterfeit diamonds is relatively rare." Director Wang Liqun of the Guangzhou Office of the Jewelry Testing and Research Center of the All-China Federation of Industry and Commerce. “There are many ways to identify zircons. Consumers can use specific instruments, and experts can distinguish them with the naked eye, but be sure to pay attention when purchasing expensive diamond rings.â€
Foreign purchase diamonds do not understand foreign languages, do not rush to start
When tourists used to buy diamonds overseas, they did not understand foreign languages ​​or did not understand the terminology of the gem industry. They thought that they had no problem with the foreign language appraisal certificate issued by the jeweler, and they bought the zircon. The visitor found an error after returning home, but because the certificate stated zircon, it could not be returned. The regular diamond jewelry sold in the jewelry store has the certificate of identification test issued by the national accredited laboratory, but if the certificate is only written in foreign languages, you need to pay attention, consumers should not rush to buy.
There are many ways to distinguish between zircon and diamond. The more formal and common method is to use the “thermal conductivity meter†for identification. “The thermal conductivity of zircon is much lower than that of diamonds, so the industry has invented the 'thermal conductivity meter' to distinguish between the two. The instrument makes a sound when it touches the diamond with the 'thermal conductivity meter', but not when it touches the zircon. "Now the regular formal jewelry store will be equipped with a "thermal guide", customers can take the initiative to ask for testing to protect their rights.
Zircon gloss is more rigid than diamond
Since the specific gravity of diamond is 3.52, and the specific gravity of zircon is more than 4.2, the equivalent volume of zircon is heavier than diamond. Therefore, this method can be used for simple discrimination. Some experienced jewelry identification experts can use the degree of "fire" of the gem to see the type of gem. “The gloss of each side of zircon is similar, it looks rather dull, 'fire color' is not as beautiful as diamonds. But because of the experience of this method, the average consumer may not be able to use this method to judge it.†In addition, due to zirconium Stone has a strong "birefringence". When viewed with a magnifying glass, it can be seen that the bottom surface and the ridge line have obvious double shadows, and the diamond is "homogeneous" because there is no double shadow phenomenon.
“Since the value of synthetic zircon is not high, zircon is mainly used as a clothing accessory in comparison with crystal. There are not many jewellery made in it. But some of the more advanced and good quality synthetic zircon can be sold as a gemstone ring. The price ranges from a few hundred yuan to more than one thousand yuan. In general, there is a certain distance from the diamond ring."
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