More than 2500 years ago the first diamond was found, this dazzling gem was given a very high value. Compared to the long history of natural diamonds, born in the middle of the last century, synthetic diamonds can be considered as a new thing. But thanks to the rapid development of technology, synthetic diamond has long been out of the research and exploration stage, the pace of its market is also accelerating, causing attention from inside and outside the industry.

At the end of the 18th century, the French chemist, Antoine-Laurent de Lavoisier, found that diamonds were a kind of elemental crystals formed by deep carbon under high pressure and high temperature conditions, providing a theoretical basis for later synthetic diamond technology.

In 1954, after nearly four years of experimentation, General Electric's head of "Project Super-pressure" led by H.Tracy Hall, finally made breakthrough in synthetic diamond technology  field. Their method was to heat the carbon to 2760 degrees Celsius, and with a hydraulic press to a very high pressure, which gave birth to the industry called "high temperature high pressure synthetic diamond" (HPHT). General Electric applied its HPHT synthetic diamond technology for a patent, and in 1958 began to sell synthetic diamonds, reached 75 million karats of production just for a year.

However, General Electric was not the only company in the field of synthetic diamonds. In 1952, William Eversole, a scientist at Union Carbide Corporation, used Chemical Vapor Deposition (CVD) technology. Thanks to this technological innovation, synthetic diamonds now play a vital role in many industries.

Then the scientific community had spent several decades trying to cut costs, synthetic diamond technology began to become better, faster, cheaper, more and more companies had already joined them. People found that not only you can take brown diamonds to do seed cultivation of yellow diamond, but also by means of treatment to make brown diamond into pink diamond. By 2007, color synthetic diamonds have been widely sold and became an inexpensive jewelry alternative.

Although pink and yellow synthetic diamonds were quite beautiful, the major synthetic companies were still moving towards the ultimate goal - colorless synthetic diamonds. In 2012, Gemesis announced the mastery of IIa-type colorless diamond synthesis technology. IIa Technologies was "the world's largest diamond-growing greenhouse"with 200 machines running 24 hours a day. In addition, IIa Technologies used microwave plasma chemical vapor deposition(MPCVD), which was more advanced in the synthesis technology. It was said that the use of this method to cultivate the diamond visual effects were more shine.

Synthetic diamond industry also attracted Silicon Valley. 2015, Diamond Foundry company was established. The company claimed to have refined synthetic diamond technology that shorten the diamond cultivation period to 2 weeks (6-10 weeks in general industry standards) and monthly synthetic diamond production could be up to 2000 karats. The Oscar best actor Leonardo DiCaprio is one of Diamond Foundry investors as well.

Besides the new generation of synthetic diamond companies, many traditional jewelers also joined them. In December 2015, Stuller, USA’s largest jewelery maker, began selling synthetic diamonds. Jewelry manufacturing giant SWAROVSKI also started the synthetic diamond industry,launching the entire synthetic diamond brand Diama.

Last week, researchers at the University of Augsburg in Germany, made 155-carat the world's largest synthetic diamonds after 26 years, the diameter of its disc-type single crystal diamonds ,compared to the world's famous giant diamond set in the British Queen on the scepter ,Cullinan No.1, even larger.

Frost & Sullivan predicted that by 2026 the market demand for synthetic diamonds will jump to 20 million karats.

With the improvement of CVD synthesis technology, our company Luoyang Yuxin Diamond Co., Ltd. through the adoption of gas raw material (hydrogen, methane), we get the completely transparent and colorless large size diamond single crystal under less than one air pressure, the temperature of 800-1200 ℃ by epitaxial growth way (growth way/as shown in Figure 1), its composition, hardness, density, etc. are basically identical with natural diamond, but the price is much lower than that of natural diamond; different from the method of high temperature and high pressure (HTHP), CVD artificial synthetic technique does not need to use the catalyst, and puts an end to forming metal inclusions, cracks, holes, etc. in the production.

Features: after polishing, the clarity is commonly VVS and above level, color chromaticity of D-J.

We can provide raw diamond at carat level.