Diamond’s bright appearance and high market value is sought after by many people in the world, but the yield of natural diamonds is limited. Recently, Germany has created the world's largest synthetic diamonds.

Researchers at the University of Augsburg in Germany have developed a method for the manufacture of synthetic diamonds by chemical vapor deposition at about one tenth of the atmospheric pressure. In this way, the synthetic diamond is under low pressure conditions, and use  certain methods to activate the carbon-containing gas, so that the carbon atoms in the substrate deposite supersaturated and grow into diamonds.

The University of Augsburg's research since 1991 and has gone through 26 years. The diameter of the 155-carat disc-shaped single crystal diamonds is one of the world's most famous giant diamonds on the British Queen's Scepter, and the diameter of the "Cullinan 1" is even larger. Although the disc-shaped synthetic diamonds in the application of jewelry potential is very limited. But the physicist, who led the study, said the industry would have a wide range of industrial applications.

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.