Diamond a mechanical, thermal, optical, chemical, electronics and other special materials has ultimate performance.

First, synthetic diamond status on Dec. 8, 1954, New York, USA Schenectady GE (General Electric) to study the development of heart scientists of the Di (F · P · Bundy), Hall (H · T · Hall) First of all, and others to overcome high pressure engineering, materials testing, the difficulties to achieve this change in conditions, the successful carbon graphite material for the synthesis of metal melts diamond to make a landmark contribution. In 1958, commercial production of synthetic diamond. Since then, synthetic diamond production has more than a natural diamond production. GE's industrial diamond synthesis after he spent 15 years, until 1970, announced the successful synthesis of gem-grade diamonds.

Seed in 1971, announced the details of process temperature gradient method. Reported that only produce weight was 0. 30ct, 0. 31ct, 0. 39ct three transparent diamond, the cost of expensive natural diamonds can not match. In 1986, the agency announced that the former Soviet Union outside the Soviet Academy of Sciences, under high temperature and pressure synthesis of a large diamond crystal weight 9988ct generate temperatures even higher than the surface temperature of the sun. In 1987, the South African De Beers diamond laboratory method using high temperature and pressure within the system 60 hours a 1ct diamond crystal; 180 hours druse synthesized in 5ct diamond, the largest single crystal is 11. 14ct, maximum length is 16mm, crystal is cubic ( 100) octahedral (111) oriented poly-shaped. These diamonds usually yellow or brown; without cleavage crack; suitable for treasure stone surface can also be used for drawing dies, cutting tools, radiation detectors.

In 1987, the "diamond film" World on the rise, the growth of foreign literature published dozens of methods of diamond film as much. Since the 80s of the 20th century, film growth rate, structural properties of sedimentary area has been gradually to the extent applicable. Study confirmed that high quality polycrystalline CVD diamond film hardness, thermal conductivity, density, elasticity (Young's Modulus to characterize) the physical properties of light transmission at or close to natural diamond and diamond films have almost the same performance with the single crystal diamond, but it continuity of material, so as to solve the size problem. As the 21st century with new functional materials, thin film, as the pioneering research work and application of the deepening of the near future, the diamond film will feature all important areas, particularly in high-tech sectors have an important impact.

In 2003, foreign diamond was awarded two breakthrough performance --- Russia produced more than diamond three-dimensional polymer macromolecules, the Japanese developed a high hardness of diamond. Institute of Chemical Physics, Russian Academy of Sciences Gennady Korolev scientific team led by Dr., after nearly 30 years of tireless research, finally found an effective method of control of molecular behavior, the successful synthesis of three-dimensional structure of macromolecular polymers. This process is called "activated polymerization", the performance index over the diamond complete performance; Ehime University, Japan Research Center of Deep Earth dynamics of different catalysts, "direct conversion" the first with direct synthesis of high purity graphite and more Crystal Diamond, a collection of hundreds of nanometer in diameter polycrystalline particles, hardness up to 140GPa, more than 2 times higher than single crystals, but also high temperature.

Second, a major producer of synthetic diamond to the world production of synthetic diamond twenty countries: the United States, Britain, China, Ireland, Russia, Ukraine, Sweden, South Korea, Japan, France, Belarus, Uzbekistan, Germany, etc. We estimate that current annual world diamond breakthrough 3000000000 kt, its annual output has two billion kt country as much as synthetic diamond production for the world superpower, low product yield is highest in the world, its low price is also the world most. The CE companies (annual production 160 million kt), DeBeers Company (annual production about 200 million kt), South Korea on the company, for the 6000-8000 million carats, these products are high-end products.

Third, the prospects of economic development of synthetic diamond synthetic diamond is not only the world's production, but also some of the performance more than the natural diamond. Today synthetic diamond is basically formed a complete series, as engineering materials can meet the various industrial applications of synthetic diamond made by the demand for mechanical processing technologies, geological oil drilling technology, changes in stone processing technology changes occur. The application of functional materials are being hard. Diamond film of a great future development of new functional thin film materials, it is a short course of development, theoretical research, technology development, application extensions are far from perfect, no system, and more, deeper and more extensive research, industrial scale, also have a longer way to go. But it excellent performance, wide application prospects will attract more research effort to develop science and technology workers. As the 21st century with new functional materials, thin film, as the pioneering research work and application of deepening the near future, the diamond film will feature all important areas, the economic outlook will be great. Nano-diamond broadens traditional diamond applications, but only started after application of nano-diamond synthesized by high performance dispersant, design effective decentralized methods to improve the stability of uniform particles Fensan Hou Nami, a key application of nano-diamond, with the time, surely will be more fruitful. With the small size effect of nano-diamond, quantum effects and macroscopic quantum tunneling in-depth study, prospects for broader application of nano-diamond. With the development of science and technology, diamond synthesis technology more comprehensive, more complete, this century will be industrial, commercial, military, education, entertainment and medical fields play an important role. Applications will increasingly wide contribution to industrial innovation will more and more, all of which fully shows the diamond science research, the potential prospect, Diamond will be the same as colorful.