Existing Technology in Synthetic Diamond

Since 1954, GE has introduced a new method to manufacture diamond in factory. The diamonds being manufactured are low quality, small in size and also ugly in color. These diamonds include many impurities that they can only be used for industrial purpose. The man-made diamonds are usually yellowish in color, with iron inside.

Both GE and DeBeer has done some later attempt in Synthetic diamond. However, it is claimed that the Synthetic diamond has not further because of the quality and price. However, more important is the benefit of nature diamond market.

Later attempt are in electronic research and weapon study. Since diamond is a semi-conductors, the best heat conductors and len. It is a ideal laser weapon, and also an idea semi-conductors. Therefore, Somitomo of Japan, USSR, USA and China has done a lot in it. Although Chinese do the poorest among all BIG, the fall of USSR create an opportunity. A group of scientist from Siberia lost their job and therefore establish a new research branch in Western China, to do it. But the by-product is the Jewelry grade synthetic diamond.

When compared to almost any other material, diamond almost always comes out on top. As well as being the hardest known material, it is also the least compressible, and the stiffest material, the best thermal conductor with an extremely low thermal expansion, chemically inert to most acids and alkalis, transparent from the deep uv through the visible to the far infrared, and is one of the few materials known with a negative electron affinity (or work function).

CVD is another method being used to produce industrial used diamonds. However, this method can produce diamond of extremely small in size. Some of them are actually fine powder of about 1 micrometer in diameter. Nevertheless, this method can produce the best diamond in laboratory.