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The fate of synthetic diamonds in the jewelry market of the last century is different. At that time, the cost of synthetic diamonds is much higher than that of natural diamonds. When you accidentally buy a synthetic diamond jewelry at the price of natural diamonds, you will buy more or less. The feeling of earning. The manufacturing cost of synthetic diamonds is now greatly reduced. China is the world's largest producer of synthetic diamonds. With the advancement and maturity of synthetic technology, the amount of gem-quality synthetic diamonds is also among the large number of industrial-grade diamond products produced each year. getting bigger. The first time in 2012 that domestically discovered jewellery-grade synthetic diamonds, the fact that synthetic diamonds have commercial value is unquestionable. It is also since then that synthetic diamond jewelry has been radiated to all parts of the country with Shenzhen as the source. It has been swayed by natural diamonds in the market, and then bought a synthetic diamond at the price equivalent to natural diamonds. It was cheated. It is precisely because of this that the National Jewelry and Jade Jewelry Management Center launched a CVD synthetic diamond inspection and testing program in 65 key jewelry testing laboratories in China in September 2012, providing technical support for China's diamond consumer market and understanding for consumers. Consumption provides a full range of technical services.
Given the differences in the conditions of formation of natural and synthetic diamonds, many of the gemmological features of synthetic diamonds are different from those of natural diamonds, which is the main basis for comprehensive investigation of synthetic and natural diamonds. When consumers buy diamond jewelry, they may wish to focus on the internal characteristics of the diamonds they purchase, and may not need to send professional identification agencies to get some important information.
One is the inclusion in the diamond. The inclusions in the natural diamond are mostly tiny crystals of colored or colorless natural minerals, while the inclusions in synthetic diamonds are either metal (synthesized by HTHP) or some along a plane. Or a small pinpoint that is scattered;
The second is the growth residue. In order to take care of the weight, the natural diamond jewelry often leaves some triangular pits (the original crystal face of the natural diamond) in the position of the waist shuttle, while the synthetic diamond is similar to the dendritic, eucalyptus or dense. Arranged twill and other growth textures;
The third is the growth of the ribbon. Under the irradiation of scattered light, the visible bands of natural diamonds are generally arranged in parallel, while the synthetic diamonds are characterized by hourglass or ribbon stratification. Of course, these are just the means for consumers to make temporary emergency response. They need reliable detection, and they need infrared, UV-visible, Raman spectroscopy, and professional detection methods such as photoluminescence and cathodoluminescence.
"Diamonds are long-lasting, a eternal rumor" has unearthed the enthusiasm of Chinese people for the consumption of diamonds. At a time when synthetic diamonds have generally entered the consumer market, synthetic diamonds have inherited the "permanent long-term" at the same time, and "璀璨" may also be inevitable. The trend is over.
Abstract Diamonds, which are known as the “King of Gemsâ€, are the most precious gemstones in the gemstones. The sales volume ranks first in the world. The research on their synthesis has never stopped. Synthetic since the late 1950s...
The diamonds that are known as the "King of Gems", as the most precious gemstones in the gemstones, have been sold to the world's first gemstones. The research on their artificial synthesis has never stopped. Since the end of the 1950s, the technology of synthetic diamonds has made breakthroughs, and industrial grade synthetic diamonds have been produced one after another, but the synthesis is produced by the HTHP (high temperature and high pressure) synthetic diamond process. Diamonds have not been of commercial value either because they are too small or expensive. Correspondingly, the demand for industrial and daily consumption is growing, and the difficulty of natural diamond reserves and mining is increasing. This contradiction has led to the development of synthetic diamond technology. In the late 1990s, the improved chemical vapor phase (CVD) finally broke through the bottleneck of producing small-grain synthetic diamonds, and commercial-grade synthetic diamonds entered the diamond jewelry consumer market.