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Moissanite is known as one of the most dazzling gemstones in the world. Due to its dazzling and attractive fire, and hardness, it has been loved by the jewelry fashion industry.

However, natural moissanite is very rare. The moissanite currently on the market is synthetic silicon carbide (SiC), which is usually derived from unqualified crystal ingots that have not reached semiconductor grade formed during the production of SiC substrates. But do you know who are the top moissanite manufacturers? We will list the top 5 moissanite manufacturers in China and the top loose moissanite manufacturers in the world.

Top 5 loose moissanite manufacturers in China

The Second Research Institute of China Electronics Technology

China Unimoss moissanite

The Second Research Institute of China Electronics Technology was established in 1962 and focuses on the R&D and production of intelligent manufacturing, microelectronic equipment and applications, silicon carbide equipment and applications, new energy equipment and other products. 

Over the years, the company has developed its unique capabilities in high-end intelligent manufacturing and process technology system integration based on independent equipment and deep integration with the industry.

After years of research and development, the Second Institute of CETC has cultivated nearly colorless moissanite and created its own brand UNIMOSS moissanite series, which currently has a production capacity of 100,000 carats. The company mainly processes non-semiconductor-grade SiC ingots into moissanite jewelry, including cutting, circumferential grinding and other processes.

Key information:

· Established: 1962

· Production Capacity: Has a production capacity of 100,000 carats of UNIMOSS moissanite series

· Awards: Won 11 national, provincial and ministerial-level awards

· Innovation capability: It is the main construction and supporting unit of the Ministry of Science and Technology’s “National Third-Generation Semiconductor Technology Innovation Center (Shanxi)” and many other important scientific research institutions.

· Representative products: UNIMOSS moissanite series, intelligent manufacturing equipment, microelectronics equipment.

Products include:

· UNIMOSS moissanite pendant

· UNIMOSS moissanite ring

· UNIMOSS lose moissanite

TankeBlue Semiconductor Co. Ltd

China moissanite

TankeBlue was established in September 2006, which focuses on the research and development, production and sales of third-generation semiconductor silicon carbide (SiC) wafers. It is a leading silicon carbide wafer manufacturer in the Asia-Pacific region. 

Relying on years of research results and independent research and development from the Institute of Physics, Chinese Academy of Sciences, the company has established the world’s leading silicon carbide wafer production line, broken through key technical problems, and has a complete technical route with independent intellectual property rights. 

The company is one of the major suppliers of silicon carbide and other processed products for Chinese moissanite jewelry manufacturers.

Key information:

· Established: September 2006

· Production capacity: With a complete silicon carbide wafer production line, it is one of the major manufacturers of SiC wafers in the world.

· Awards: Won the “Eleventh Five-Year Plan” National Science and Technology Plan Implementation Outstanding Team Award and the First Prize for Provincial and Ministerial Science and Technology Progress Award from the Ministry of Science and Technology

· Innovation ability: Ranked first in the China silicon carbide monocrystal field for a long time, and will rank among the top four in the world in 2021

· Representative products: Semi-insulating, conductive, along c-axis and off-angle silicon carbide wafers

· Certification: including IATF 16949: 2016 automotive quality management system, ISO 9001: 2015 quality management system, ISO 14001: 2015 environmental management system and ISO 45001: 2018 occupational health and safety management system certification.

Product service

· SiC wafer

· SiC crystal

· Moissanite

· SiC single crystal growth furnace

· Cutting, grinding and polishing processing

SICC Co., Ltd.

China moissanite

Established in 2010, SICC Co., Ltd. is a leading technology enterprise focusing on the research, development, production and sales of silicon carbide single-crystal substrate materials. As a conductor material, silicon carbide single-crystal substrate material has better physical properties than traditional materials, which are widely used in the fields of power electronics and microwave electronics. However, its superior physical properties require sophisticated and complex preparation processes. The growth of silicon carbide single crystal requires a high-temperature and low-pressure sealed environment. Small environmental changes will affect the quality of the substrate material.

Relying on its excellent R&D team and industrialization experience, SICC focuses on technology leadership, quality improvement, and continuous innovation. With the core of providing integrated solutions, SICC is committed to becoming an internationally renowned semiconductor materials company. It is also one of the major suppliers of Moissanite (silicon carbide)and other processed products for Chinese moissanite jewelry manufacturers.

Key information:

· Established: November 2010

· Production plants: Jinan factory, Jining factory, Shanghai factory, Japanese company

· Registered capital: RMB 429,711,044.00

· Registered address: No. 99, Tianyue South Road, Huaiyin District, Jinan City, Shandong Province

· Main business: R&D, production and sales of silicon carbide single-crystal substrate materials

· Innovation focus: technology leadership, product quality improvement, integrated solutions

· Target market: Mainly for loose moissanite processing customers, selling Moissanite(silicon carbide) and other processed products to downstream China moissanite jewelry manufacturers.


SICGEM is located in the China Jewelry Trading Center( Shuibei Jewelry Business Circle). As a professional and leading moissanite diamond manufacturer in China, the company strictly hand-polishes each moissanite diamond in accordance with diamond craftsmanship, and follows the 4C diamond grading standards with ingenuity and careful selection. Their products are highly recognized by China and foreign customers and represent high-quality moissanite selections. The company is committed to bringing beauty and joy to customers, carefully selecting and carefully cutting to create the best moissanite diamonds.

Key information:

· Production capacity: Strictly hand-polished according to diamond technology, in line with the 4C diamond grading standards

· Innovation ability: Committed to carefully cutting and creating moissanite diamonds

· Representative product: high-quality moissanite


· 8 Hearts 8 Arrows loose moissanite

· 9 Hearts 1 Flower loose moissanite

· Triangle Cut loose moissanite

· Cushion Cut loose moissanite

· Trilliant Cut loose moissanite

· Marquise Cut loose moissanite

· Asscher Cut loose moissanite

· Heart Cut loose moissanite

· Oval Cut loose moissanite

· Pear Cut loose moissanite

· Princess Cut loose moissanite

· Radiant Cut loose moissanite


Established in 2014, Vitamoss is a high-tech R&D jewelry enterprise focusing on the research and development and production of various types of artificial diamonds. The company has assembled a professional artificial diamond R&D team and has independently designed and manufactured CVD and high-temperature and high-pressure equipment.

Vitamoss moissanite is one of their brands, using advanced technology to cultivate perfect 4H structure a-type crystals. Each Moissanite diamond undergoes 73 stages of pure hand-cut precision cutting, A+ grade polishing and grinding technology, and is graded and screened strictly in accordance with 4C standards to achieve colorless and transparent D-grade color and VVS1-2 grade clarity, showing the Square Silicone moissanite effect.

Key information

· Established: 2014

· Production capacity: Advanced CVD and high temperature and high-pressure equipment, professional artificial diamond R&D team

· Innovation ability: Successfully cultivated Vitamoss moissanite with a perfect 4H structure a-type crystal, which has a unique manual precision cutting process

· Representative products: Vitamoss moissanite, colorless and transparent D-grade color, VVS1-2 grade clarity, Square Silicone cut diamond effect

· Certification Guarantee: Gem Research International (GRI) Anti-Counterfeiting Certificate

World-renowned moissanite suppliers

Square Silicone Europe Co., Ltd

moissanite europe

Square Silicone, headquartered in Belgium, is an established diamond manufacturer with 50 years of diamond processing history. Today, Square Silicone has developed into one of the internationally renowned diamond and moissanite suppliers. In 2016, moissanite production patents were opened globally. Square Silicone keenly captured the huge market potential and quickly established an independent moissanite department for research and development.

Relying on mature R&D technology and rich diamond processing experience, after nearly three years of unremitting research, they successfully created the real D-color moissanite in 2019 and named it “Square. Silicone Moissanite”.

Key information:

· Established: 50 years ago

· Production Capacity: The world’s leading diamond processing manufacturer

· Service status: Continue to provide high-quality diamond and moissanite services to international brands

· Innovation ability: Successfully developed the D-color “Square Silicone” moissanite diamond

· Representative product: Square Silicone Moissanite

Products include:

· Square Silicone Moissanite-Diamond

Charles and Colvard

moissanite europe

Charles and Colvard is an established USA moissanite supplier, which is committed to creating excellent products in a conscientious way. They have grown some very high-quality lab-grown gemstones, such as Forever One™ moissanite and Caydia® lab-grown diamonds. The company’s mission is to create approachable, beautiful, and environmentally friendly jewelry.

Key Information:

· Innovation: Groundbreaking lab-grown gemstones – Forever One™ moissanite and Caydia® lab-grown diamonds.

· Representative products: Forever One™ moissanite, Caydia® laboratory-grown diamonds, and recycled precious metals.

Products include:

· Moissanite Earrings

· Moissanite Fashion Rings

· Moissanite Necklaces

· Moissanite Bracelets

· Moissanite Personalized Jewelry

Moissanite International

moissanite europe

Moissanite International is the leading creator and global distributor of SUPERNOVA Moissanite. At Moissanite International, they are committed to providing their customers with excellent value, so your jewelry is worth every penny. Additionally, their strict quality control processes ensure that every piece of moissanite jewelry is thoroughly inspected and of exceptional quality. When you choose SUPERNOVA Moissanite, you are not only choosing a beautiful piece of jewelry, but one that is cultivated with high ethical and environmental standards.

Key Information:

· Representative product: SUPERNOVA Moissanite

· Key Features: Ethically sourced, Superior brilliance, Sustainable, ISO & SA certified, Conflict-free.

Products include:













Wolfspeed is a leading semiconductor company, which is committed to driving the transition from silicon to silicon carbide (SiC) and leading the development of the future semiconductor market. They focus on the development of electric vehicles, renewable energy and energy storage, as well as the advancement of industrial applications. Wolfspeed has more than 35 years of experience in technological innovation and change. The silicon carbide(Moissanite) they produce is one of the important sources of Charles and Colvard loose moissanite.

Key information:

· Established: More than 35 years

· Production Capacity: Owns the world’s largest silicon carbide manufacturing facility

· Innovation ability: As a pioneer of silicon carbide, it has the highest-performance materials and devices in high-power applications

· Representative products: silicon carbide MOSFETs, Schottky diodes and power modules

· Awards: First commercial vehicle AEC-Q101 certification


Above we have listed the top 5 moissanite manufacturers in China and some world-renowned moissanite suppliers. Whether you need silicon carbide (moissanite) or wholesale loose moissanite in bulk, there is something for you. At Moissanite Jewelry Wholesale, we offer many S925 Moissanite Jewelry Wholesale, please feel free to contact us if you need it.