Lab-grown Diamond Manufacturers

Cultivated diamonds are a category of artificial diamonds, which refer to gem-grade artificial diamond single crystals with high quality and large grains that can be made into jewelry. The full English name is Laboratory Grown Diamond, which means "laboratory-grown diamond", also known as laboratory-grown diamond. The industrial chain of cultivated diamonds can be divided into three parts: upstream rough producers, midstream cutting processors, and downstream retail brands. China, India, and the United States dominate the production, processing, and retail markets respectively.

 

lab-grown diamond manufacturers

1. Foreign manufacturers

Element Six is a global leader in the design, development and production of synthetic diamond and tungsten carbide superhard materials. It is a member of the De Beers Group and its headquarter is registered in Luxembourg. As a leading global supplier of high-quality advanced materials, its product applications include optical, mechanical, thermal, electronic, automotive, telecommunications and medical industries. The company has production and processing plants in China, Germany, Ireland, Sweden, South Africa, Ukraine and the UK, supported by a global distribution network.

Sumitomo Electric Japan Corporation, founded in 1897, is one of the most famous communication manufacturers in the world. Sumitomo Electric's business involves five major fields: automobiles, information and communication, electronics, environmental energy, and industrial raw materials. Its large-size synthetic diamond single crystal developed by CVD method is in the forefront of the world in ultra-precision processing and semiconductor functional materials.

Pure Grown Diamonds, formerly Gemesis Company, was established in New York, USA in 1996. It is an internationally important lab-grown diamond manufacturer. It once produced the world's largest lab-grown diamond, and its products are wholesaled to jewelry manufacturers after cutting and polishing.

2. Domestic manufacturers of HTHP-grown diamonds

Zhongbing Red Arrow Co., Ltd. (Zhongnan Diamond) is mainly engaged in three major business segments: special equipment business, superhard material business, special vehicle and auto parts business. Among them, the superhard material business segment is mainly in charge of the wholly-owned subsidiary Zhongnan Diamond Co., Ltd. The main products of Zhongnan Diamond include industrial diamond and cubic boron nitride single crystal and polycrystalline products, composite materials, cultivated diamonds, high-purity graphite and its products, etc. Among them, the production, sales and market share of the leading product industrial diamond rank first in the world for many years, and cubic boron nitride ranks first in China. In terms of cultivated diamonds, Zhongnan Diamond has a technological advantage in large-scale products. At present, it can stably produce large-scale high-temperature and high-pressure gem-grade diamond single crystals within 30 carats, and can supply high-quality high-temperature and high-pressure gem-grade diamonds above 3 carats in batches. Cultivate diamond products.

Zhengzhou Huajing Diamond Co., Ltd. is a high-tech enterprise integrating professional research, production and sales of superhard materials and its product industry chain. It is a pillar enterprise in the superhard material industry and a backbone enterprise in Henan superhard material industrial base. The company masters the core technology and independent intellectual property rights of the synthesis process, equipment, raw and auxiliary materials of synthetic diamond related products, and has a post-doctoral work sub-station and a testing center approved by the China National Accreditation Service for Conformity Assessment. The series of products formed by the company mainly include synthetic diamond single crystals (including ordinary single crystal diamonds and large single crystal diamonds), raw and auxiliary materials, and cultivated diamond jewelry, which can be widely used in traditional applications such as mechanical stones, electronic appliances, etc., and can also be extended to Emerging application fields such as national defense and military industry, aerospace, equipment manufacturing, electronic technology, medical equipment, jewelry, and artwork.

Yuzhou Xinjiahui New Material Technology Co., Ltd. Xinjiahui is a cultivated diamond production enterprise founded by Feng Canjun. It is located in Yuzhou City, Henan Province. The company is mainly engaged in the research and development, production and sales of cultivated diamonds. As early as 2010, Feng Canjun took the lead in inventing the catalyst formula and production process for cultivating diamonds in Henan. He catalyzed "white diamonds" on the basis of diamonds. In 2012, he was able to mass-produce small white diamonds. "The first person to cultivate white diamonds". Feng Canjun established a catalyst company and sold its catalysts to a number of lab-grown diamond manufacturers. Feng Canjun integrates the production capacity of six-sided presses across the country in the form of technology empowerment. The number of six-sided presses for the production of cultivated diamonds has reached 552, and 95 percent of its rough diamonds are exported to India, the United States, Belgium, Dubai and other countries .

 

3 Domestic CVD grown diamond manufacturers

Realized the batch preparation of 4-6 carats, and mastered the synthesis technology of "10 carat cultivated diamond single crystal", the color of the product reached D color,

The clarity reaches VVS level, and the good product rate reaches 50 percent , which ranks in the first production echelon in the world. The company is a veteran enterprise in cultivating synthetic diamonds, and its stock

The average service life of the press is long, and the elimination rate of stock presses is about 5 percent every year; due to its own rapid development needs, some industrial press production capacity has been converted to training

It is expected that the annual conversion capacity will be about 10 percent ; the compound growth rate of the company's grown diamond revenue is expected to be 35 percent from 2022 to 2025

Beijing World Diamond Tools Co., Ltd., founded in 2006 in Zhongguancun Electronic City Science and Technology Park, is a high-tech enterprise mainly engaged in the research and development, production and sales of superhard tools and superhard material products. With more than 16 years of experience in CVD technology research and development, the types of cultured diamonds that can be produced include white diamonds, pink diamonds and black diamonds and other multi-color diamond products. Wald has always been intensively cultivating in the field of superhard materials, and its products are widely used in consumer electronics, automobile manufacturing, construction machinery, aerospace, energy equipment and other industries.

Henan Sifangda Superhard Materials Co., Ltd. was established in 1997. Sifang Dazhu was listed on the Shenzhen Stock Exchange in 2011, becoming the first batch of listed companies in China's polycrystalline diamond industry. The company is mainly engaged in the R&D, production and sales of polycrystalline diamond (referred to as PCD) and related products. The company's products include polycrystalline diamond composite sheets for oil/gas drilling, polycrystalline diamond composite sheets for coal fields and mines, and polycrystalline diamond composite sheets for cutting tools. Strategic product system for business growth points. Products are widely used in oil drilling and mining, auto parts, equipment manufacturing and other manufacturing fields. At present, Sifangda has acquired Tianxuan Semiconductor through capital increase to develop high-purity CVD diamond business in order to reserve diamond preparation technology. The first phase of 100 CVD projects has been basically completed, and the release of production capacity will contribute to the increase in performance.

Shanghai Zhengshi Technology Co., Ltd. Zhengshi Technology is a multinational high-tech enterprise integrating R&D, production and sales. Zhengshi Technology has a professional R&D team, continues to explore and apply innovative methods and technologies, has applied for more than 100 patents, and passed the ISO9001 quality management system certification. The company has the advanced core production technology "MPCVD method", and is the world's leading company in realizing direct growth of high-quality CVD diamonds. The company started the research and development of CVD technology in 2002 and officially put into production in 2014. At present, the business has covered 27 countries and regions around the world, and has wholly-owned subsidiaries in Hong Kong, New York, Los Angeles and other places.

Hangzhou Chaoran Diamond Co., Ltd. Hangzhou Chaoran is a diamond enterprise integrating R&D, production and sales. At present, it has more than 40 patents. The products can be used in jewelry and many industrial and scientific research fields. The CVD single crystal diamond independently developed and produced The products have reached the advanced level in the world.

Ningbo Jingzuan Industrial Technology Co., Ltd. was established in 2013. It is a high-tech enterprise jointly founded by overseas returnees and well-known entrepreneurs from different fields. The company is the first domestic high-tech enterprise dedicated to the industrial production and high-end application of CVD large single crystal diamonds. The annual output of diamonds in 2020 will reach 200,000 carats. Based on natural and artificial diamonds, the company is committed to the R&D, production, sales and service of diamonds, diamond tools and related equipment. The main business products include carat-level CVD large single crystal diamond, CVD grown diamond and high-end MPCVD equipment, ultra-precision diamond tools, etc.