The Global Single Crystal Diamond Market was valued at USD 1.36 Billion in 2024 and is projected to reach USD 1.92 Billion by 2032, growing at a Compound Annual Growth Rate (CAGR) of 5.1% during the forecast period (2025–2032). This growth is being driven by the material’s unparalleled properties—extreme hardness, superior thermal conductivity, and exceptional optical clarity—which are critical for advanced industrial applications in machining, electronics, optics, and quantum technologies.

As global industries push toward greater precision, efficiency, and miniaturization, single crystal diamond has emerged as a cornerstone material. In this blog, we profile the Top 10 Companies in the Single Crystal Diamond Industry—a mix of established synthetic diamond giants and specialized manufacturers shaping the future of high-performance materials.

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🔟 1. Element Six

Headquarters: Luxembourg, Luxembourg
Key Offering: High-purity CVD and HPHT single crystal diamonds

Element Six, a De Beers Group company, is a global leader in synthetic diamond technology. The company specializes in producing high-quality single crystal diamonds for the most demanding industrial and technological applications, including cutting tools, thermal management solutions, and quantum sensing.

Innovation Initiatives:

• Pioneering advanced CVD diamond growth for electronics

• Developing diamond substrates for quantum computing applications

• Expanding production capacity with a new facility in Singapore

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9️⃣ 2. Sumitomo Electric Industries, Ltd.

Headquarters: Osaka, Japan
Key Offering: SUMIDIARY® single crystal diamond products

Sumitomo Electric is renowned for its high-purity single crystal diamonds produced using advanced HPHT technology. The company’s products are widely used in precision cutting tools, wear-resistant components, and high-power electronic devices.

Innovation Initiatives:

• Leading development of diamond wire saws for semiconductor manufacturing

• Advancing diamond heat spreaders for next-generation power electronics

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8️⃣ 3. ILJIN Diamond Co., Ltd.

Headquarters: Seoul, South Korea
Key Offering: ILJIN Diamond single crystals for industrial applications

ILJIN Diamond is a major global producer of synthetic diamonds, with significant expertise in both HPHT and CVD technologies. The company supplies single crystal diamonds to various industries, including automotive, aerospace, and electronics.

Innovation Initiatives:

• Vertical integration from raw materials to finished diamond products

• R&D focus on large-sized, high-quality single crystals

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7️⃣ 4. Zhongnan Diamond Co., Ltd.

Headquarters: Zhengzhou, Henan, China
Key Offering: ZND® single crystal diamond abrasives and tools

Zhongnan Diamond is China’s largest producer of synthetic diamonds, holding approximately 23% of the global market share. The company dominates the HPHT diamond production sector and supplies materials for cutting, grinding, and drilling applications worldwide.

Innovation Initiatives:

• Mass production capabilities for cost-effective diamond solutions

• Expanding into high-value applications beyond traditional abrasives

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Single Crystal Diamond Market – View in Detailed Research Report

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6️⃣ 5. Huanghe Whirlwind Co., Ltd.

Headquarters: Zhengzhou, Henan, China
Key Offering: Huanghe Whirlwind single crystal diamonds

Huanghe Whirlwind is one of China’s leading synthetic diamond manufacturers, with extensive experience in HPHT technology. The company produces a wide range of single crystal diamonds for industrial applications and has been expanding its market presence through strategic acquisitions.

Innovation Initiatives:

• Recent acquisitions to consolidate market position

• Focus on improving crystal quality and production efficiency

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5️⃣ 6. Zhengzhou Sino-Crystal Diamond Co., Ltd.

Headquarters: Zhengzhou, Henan, China
Key Offering: Sino-Crystal single crystal diamond products

Zhengzhou Sino-Crystal is a specialized manufacturer of high-quality synthetic diamonds, with strong capabilities in both HPHT and emerging CVD technologies. The company serves various industrial sectors with precision diamond solutions.

Innovation Initiatives:

• Investment in R&D for larger, defect-free crystals

• Development of application-specific diamond products

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4️⃣ 7. CR GEMS Diamond Co., Ltd.

Headquarters: Zhengzhou, Henan, China
Key Offering: CR GEMS single crystal diamonds for industrial and jewelry use

CR GEMS Diamond is a significant player in the Chinese synthetic diamond market, producing single crystal diamonds for both industrial applications and the growing lab-grown jewelry sector. The company leverages China’s manufacturing advantages to offer competitive products.

Innovation Initiatives:

• Diversification into lab-grown diamond jewelry market

• Quality improvement initiatives for industrial-grade diamonds

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3️⃣ 8. Applied Diamond, Inc.

Headquarters: Wilmington, Delaware, USA
Key Offering: CVD single crystal diamond wafers and components

Applied Diamond specializes in chemical vapor deposition (CVD) diamond technology, producing high-purity single crystal diamonds for demanding applications in research, electronics, and optics. The company focuses on the high-end segment of the market.

Innovation Initiatives:

• Development of diamond-based radiation detectors

• Advanced CVD processes for electronic-grade diamonds

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Single Crystal Diamond Market – View in Detailed Research Report

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2️⃣ 9. Worldia Diamond Tools Co., Ltd.

Headquarters: Zhengzhou, Henan, China
Key Offering: Worldia single crystal diamond tools and abrasives

Worldia Diamond Tools is a prominent manufacturer specializing in diamond tools and abrasives made from single crystal diamonds. The company serves the construction, mining, and precision machining industries with durable cutting solutions.

Innovation Initiatives:

• Development of specialized diamond tools for composite materials

• Expansion into international markets

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1️⃣ 10. Henan Huanghe Whirlwind International Co., Ltd.

Headquarters: Zhengzhou, Henan, China
Key Offering: International-grade single crystal diamond products

As the international arm of Huanghe Whirlwind, this company focuses on exporting high-quality single crystal diamonds to global markets. They leverage China’s production scale while meeting international quality standards for various industrial applications.

Innovation Initiatives:

• Quality certification for international markets

• Customized solutions for specific industrial requirements

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🌍 Outlook: The Future of Single Crystal Diamond Is Brighter and More Advanced

The single crystal diamond market is undergoing a significant transformation. While traditional industrial applications continue to dominate in volume, the industry is investing heavily in next-generation technologies, advanced production methods, and innovative applications across multiple sectors.

📈 Key Trends Shaping the Market:

• Rapid expansion of CVD diamond production for electronics and quantum applications

• Growing adoption in thermal management for high-power electronics and electric vehicles

• Increasing use in precision optics and laser systems

• Emerging applications in quantum computing and sensing technologies

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Single Crystal Diamond Market – View in Detailed Research Report

The companies listed above are not only supplying critical materials for modern industry—they’re pioneering the technological advancements that will define the future of high-performance materials.