Zhongnan Diamond Co., Ltd.
Zhongnan Diamond
Zhongnan Diamond Co., Ltd. is the world's largest producer of industrial synthetic diamonds by volume, founded in 1981 in Nanyang, Henan Province, China. As the core operating subsidiary of Zhongbing Red Arrow Co., Ltd. (SZSE: 000519), the company operates one of the globe's most extensive high-pressure high-temperature (HPHT) manufacturing clusters with thousands of large-volume cubic press systems. In fiscal year 2025, the parent group reported total revenue of ¥9.27 billion, with the super-hard materials segment—led by Zhongnan Diamond—generating ¥1.62 billion. The company's integrated production chain spans from graphite and catalyst powder synthesis through diamond growth, crushing, grading, and application-specific coating, yielding an annual output capacity of billions of industrial diamond carats and over one million carats of gem-quality lab-grown diamonds. Zhongnan Diamond's government-certified High and New Technology Enterprise status entitles it to a preferential 15% corporate tax rate, sustaining reinvestment in its vast manufacturing infrastructure.
Strengths: Sheer manufacturing scale unmatched globally—Zhongnan Diamond's fleet of HPHT presses represents the largest concentrated synthetic diamond production capacity on earth, yielding per-carat production costs that are structurally lower than those of Western CVD-focused competitors. The company enjoys deep state-backed industrial policy support, including the 15% tax incentive renewed in November 2025 and access to Chinese domestic graphite and catalyst metal supply chains at preferential pricing. Its vertically integrated production model—from raw graphite procurement through diamond synthesis, processing, and distribution—eliminates intermediary markup and ensures supply chain continuity. Zhongnan has rapidly expanded into lab-grown gemstone diamonds, leveraging its existing HPHT infrastructure to address the consumer market at price points inaccessible to mined diamond producers.
Weaknesses: The company's core industrial diamond segment faces severe commoditization pressure, with per-carat pricing declining year-over-year as Chinese domestic competitors and Indian processors flood the global abrasive-grade market. The parent group, Zhongbing Red Arrow, reported a net loss of ¥950 million in fiscal 2025, reflecting the erosion of gross margins in the super-hard materials segment due to relentless price competition and high fixed-asset depreciation costs. The consumer lab-grown diamond market—while growing rapidly—has experienced double-digit year-over-year price declines per carat, compressing the profitability of what was expected to be a high-margin growth vector. Zhongnan's brand recognition outside China remains limited compared to CVD pioneers like Element Six and Coherent, constraining its ability to command premium pricing in international technical applications markets.Read More ▼Show Less ▲
Strengths: Sheer manufacturing scale unmatched globally—Zhongnan Diamond's fleet of HPHT presses represents the largest concentrated synthetic diamond production capacity on earth, yielding per-carat production costs that are structurally lower than those of Western CVD-focused competitors. The company enjoys deep state-backed industrial policy support, including the 15% tax incentive renewed in November 2025 and access to Chinese domestic graphite and catalyst metal supply chains at preferential pricing. Its vertically integrated production model—from raw graphite procurement through diamond synthesis, processing, and distribution—eliminates intermediary markup and ensures supply chain continuity. Zhongnan has rapidly expanded into lab-grown gemstone diamonds, leveraging its existing HPHT infrastructure to address the consumer market at price points inaccessible to mined diamond producers.
Weaknesses: The company's core industrial diamond segment faces severe commoditization pressure, with per-carat pricing declining year-over-year as Chinese domestic competitors and Indian processors flood the global abrasive-grade market. The parent group, Zhongbing Red Arrow, reported a net loss of ¥950 million in fiscal 2025, reflecting the erosion of gross margins in the super-hard materials segment due to relentless price competition and high fixed-asset depreciation costs. The consumer lab-grown diamond market—while growing rapidly—has experienced double-digit year-over-year price declines per carat, compressing the profitability of what was expected to be a high-margin growth vector. Zhongnan's brand recognition outside China remains limited compared to CVD pioneers like Element Six and Coherent, constraining its ability to command premium pricing in international technical applications markets.
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Quick Facts
Headquarters
Nanyang, Henan Province, China
Founded
2004
Employees
2,500+
Factories
Massive HPHT press cluster in Nanyang, Henan Province, China — one of the world's largest synthetic diamond production bases covering 2.42 million sqm
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This corporate profile is compiled from publicly available sources including company annual reports, SEC/regulatory filings, official press releases, and verified third-party industry databases. Financial figures reflect the most recent fiscal year disclosures and are cross-validated across multiple independent references.
VerityRank Score is calculated using a proprietary multi-dimensional model evaluating market presence, financial strength, operational scale, innovation capacity, and brand influence. Individual dimension scores are normalized against industry peers and updated quarterly.
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Key references: Official Website , Zhongnan Diamond Official Website | Shenzhen Stock Exchange (SZSE: 000519) | Mordor Intelligence — Synthetic Diamond Market | Synthetic Diamond — Wikipedia