The Global Nanocrystalline Diamond Market was valued at USD 7.81 Billion in 2024 and is projected to reach USD 14.23 Billion by 2030, growing at a Compound Annual Growth Rate (CAGR) of 10.5% during the forecast period (2024–2030). This robust growth is fueled by escalating demand from the electronics, medical, and industrial machining sectors, alongside increasing adoption of nanocrystalline diamond (NCD) coatings for superior performance in extreme environments.

As industries push the boundaries of material science, seeking unparalleled hardness, thermal conductivity, and biocompatibility, the focus shifts to the pioneering companies producing and innovating with NCD. In this analysis, we profile the Top 10 Companies in the Nanocrystalline Diamond Industry—a collection of established material science leaders and specialized manufacturers driving the next wave of advanced material applications.

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🔟 1. Element Six (De Beers Group)

Headquarters: Didcot, Oxfordshire, United Kingdom
Key Offering: Synthetic diamond materials, CVD and HPHT NCD products

Element Six, a member of the De Beers Group, is a world leader in the design, development, and production of synthetic diamond supermaterials. The company provides high-purity nanocrystalline diamond films and materials used in cutting tools, optical components, and high-performance electronics.

Innovation and Applications:

• Pioneering CVD processes for large-area NCD coatings

• NCD solutions for thermal management in high-power electronics

• Advanced R&D in quantum sensing using nitrogen-vacancy centers in diamond

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9️⃣ 2. Sumitomo Electric Industries, Ltd.

Headquarters: Osaka, Japan
Key Offering: SUMIDIARY® diamond products, NCD tools and wafers

Sumitomo Electric is a global diversified manufacturer with a significant footprint in advanced materials. Its hard metal and diamond division produces high-quality nanocrystalline diamond products for precision machining, semiconductor processing, and wear-resistant coatings.

Innovation and Applications:

• Development of binderless NCD cutting tools for non-ferrous metals

• NCD-coated components for the automotive and aerospace industries

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8️⃣ 3. ZhongNan Diamond Co., Ltd.

Headquarters: Zhengzhou, Henan, China
Key Offering: HPHT synthetic diamond, Micron Diamond Powder, NCD coatings

ZhongNan Diamond is one of China’s leading producers of synthetic diamond and related products. The company has a strong focus on research and development, producing nanocrystalline diamond powders and coatings for industrial and technological applications.

Innovation and Applications:

• Large-scale production of HPHT synthetic diamond grit

• Expansion into CVD-grown NCD films for electronic devices

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7️⃣ 4. Advanced Diamond Technologies, Inc. (ADT)

Headquarters: Romeoville, Illinois, USA
Key Offering: UNCD® (Ultrananocrystalline Diamond) films and coatings

Advanced Diamond Technologies is a US-based company specializing in the commercialization of ultrananocrystalline diamond. Its proprietary UNCD® films exhibit exceptional properties for mechanical, biomedical, and electronic applications, serving markets from industrial pumps to MEMS devices.

Innovation and Applications:

• UNCD coatings for hermetic seals and biomedical implants

• Development of diamond-based MEMS/NEMS sensors

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6️⃣ 5. Henan Huanghe Whirlwind Co., Ltd.

Headquarters: Zhengzhou, Henan, China
Key Offering: Synthetic diamond, Cubic Boron Nitride (CBN), NCD powders

Henan Huanghe Whirlwind is a major Chinese manufacturer of superabrasive materials. The company produces a wide range of diamond products, including nanocrystalline diamond powders used in polishing, composites, and advanced coatings.

Innovation and Applications:

• Integrated production from raw materials to finished diamond products

• Focus on cost-effective NCD solutions for emerging markets

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5️⃣ 6. NeoCoat SA

Headquarters: La Chaux-de-Fonds, Switzerland
Key Offering: NANOZYME® nanocrystalline diamond coatings

NeoCoat is a Swiss company focused on the development and application of high-performance nanocrystalline diamond coatings. Its NANOZYME® technology provides extreme surface hardness and chemical inertness for tools and components in demanding industries.

Innovation and Applications:

• Specialized coatings for precision machining tools and injection molds

• Biocompatible NCD coatings for medical devices and implants

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4️⃣ 7. Zhengzhou Sino-Crystal Diamond Co., Ltd.

Headquarters: Zhengzhou, Henan, China
Key Offering: HPHT single crystal diamond, Polycrystalline Diamond (PCD), NCD materials

Zhengzhou Sino-Crystal Diamond is a specialized manufacturer of synthetic diamond products. The company’s expertise in high-pressure high-temperature synthesis allows it to produce high-quality nanocrystalline diamond for abrasive and functional applications.

Innovation and Applications:

• Production of large single crystal diamonds for high-end applications

• Development of NCD-reinforced composite materials

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3️⃣ 8. CR GEMS Diamond Co., Ltd.

Headquarters: Guangan, Sichuan, China
Key Offering: Synthetic diamond grit, micron powders, NCD suspensions

CR GEMS Diamond is a growing player in the Chinese synthetic diamond market, supplying diamond powders and materials to various industrial sectors. The company is expanding its capabilities to include finer, nanocrystalline-grade diamond products.

Innovation and Applications:

• Manufacturing of consistent quality diamond micron and sub-micron powders

• Supplying abrasives for precision polishing in optics and semiconductors

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2️⃣ 9. Jinqu Chaoying Diamond Co., Ltd.

Headquarters: Nanyang, Henan, China
Key Offering: Synthetic diamond, diamond saw blades, NCD additives

Jinqu Chaoying Diamond is an integrated manufacturer of diamond tools and abrasive materials. The company utilizes synthetic diamond, including nanocrystalline varieties, in its product lines for construction, stone processing, and precision manufacturing.

Innovation and Applications:

• Application of NCD in durable cutting and grinding tools

• Development of diamond-based abrasive systems for specialized materials

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1️⃣ 10. Morgan Advanced Materials

Headquarters: Windsor, Berkshire, United Kingdom
Key Offering: Advanced ceramics, carbon and diamond-based materials

Morgan Advanced Materials is a global leader in engineering materials. While not exclusively a diamond producer, the company utilizes and develops diamond-based solutions, including nanocrystalline coatings and composites, for thermal management, electrical insulation, and extreme wear resistance.

Innovation and Applications:

• Diamond-based thermal management materials for electronics

• High-performance seals and bearings incorporating NCD coatings

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🚀 Outlook: The Future of Nanocrystalline Diamond Is Multifunctional and Integrated

The nanocrystalline diamond market is evolving beyond traditional abrasive applications into a high-value, technology-enabling material. While machining tools still constitute a significant share, the industry is rapidly expanding into electronics, medical devices, and quantum technologies.

📈 Key Trends Shaping the Market:

• Integration of NCD in next-generation power electronics for thermal management

• Growing adoption of biocompatible NCD coatings for medical implants and surgical tools

• Research and development into nitrogen-vacancy (NV) centers in diamond for quantum sensing and computing

• Advancements in CVD deposition techniques enabling cost-effective, large-area NCD coatings

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The companies listed above are not only supplying a superior material—they are enabling technological breakthroughs across a spectrum of industries, from manufacturing to medicine.