Zhengzhou Sino-Crystal Diamond Joint-stock co., ltd was established in December, 2004, with registered capital 152 million, which is located in No.24, Dongqing Street, Zhengzhou High & New Technology Industries Development Zone. It is a unit which is under the Research Center of Zhengzhou Diamond and Related Products Engineering Technology, as well as a leading enterprise of state superhard material industry base, state high & new technology enterprise and fifty well-developed enterprises in Henan province.
With the belief of independent innovation and development, Sino-Crystal has always taken innovation ability as competitive means and achieved outstanding innovative achievements since its establishment. So far, Sino-Crystal has been awarded 180 domestic patents, at the same time taken part in instituting the standard of industry. The main products are: synthetic diamond mono-crystal and special equipment for big cavity synthetic diamond. There are two types of giant synthetic diamond press which are HJ-650 and HJ-1000. It won two first prizes that are Henan province science and technology advancement and Zhengzhou city.
Persisting in independent R&D as foundation, Sino-crystal cooperates with many scientific research universities and colleges and establishes academician and post-doctoral workstation. Zhengzhou Sino-Crystal Diamond Joint-stock Co., Ltd appeared on the stock market and broke into capital successfullly in 2010The testing center is the only laboratory which is approved by state in the superhard material industry. The testing results are accepted by international and society.
With the belief of survive by the quality, development with management since its establishment, Sino-Crystal implements the lean management and standardization management. It passed the ISO9001:2000 quality management system certification in May, 2005. SC series was judged Henan top brand in 2006 by committee of top brand strategy promotion. Our quality credit grade is evaluated “AAA” by Product Quality Association of China.
Sino-Crystal has the right to import and export. The marketing centers: zhengzhou, Huabei, Huadong, Huazhong, Guangdong, Fujian, Sichuan, etc. The products are popular in home and abroad.
Taking core technique as development driving force, Sino-Crystal continues to stick to the professional development road. It enhances the innovation on raw material, equipment, technology. Sino-crystal quickens the step of industrialization and extends the scale of company and market shares and profits. We contribute for being the greater power of diamond and make an effort of building the first class in home, international famous diamond manufacturing enterprise.

The company set up national enterprise technology center and provincial research center of diamond and products engineering technology. It also established accessory material, synthetic equipment, techniques, diamond crystal and research center, testing room, etc under the help of nine scientific and research units and colleges. Through the research and development of whole system, we service the superhard material industry; testing center provides testing means for raw material, semi-finished products, and finished-products. At the same time we adopt open service to provide test to industry and relevant field. The testing means are in line with international practice.

The testing center is the only laboratory which is approved by state in the superhard material industry. It symbolized that the testing capacity has approved by CNAS organization. It is assembled with most advanced testing equipments to bear the testing items of accessory material, diamond finished-products. The testing results are accepted by international and society.