China's Synthetic Diamond Exports Surge 65.3% in H1 2026: A Supply Chain Opportunity for Global Buyers

Executive Summary

In the first half of 2026, China's exported synthetic rough diamonds reached a total value of 1.41 billion RMB (approximately $195 million USD) through the Shanghai Diamond Exchange, representing a 65.3% year-on-year increase. The exports now cover 14 countries and regions worldwide.

Understanding Synthetic Diamonds: Applications and Market Segments

Jewelry and Luxury Goods

Laboratory-grown diamonds have gained significant acceptance in the jewelry market. They offer identical visual and physical properties to natural diamonds at a fraction of the cost.

Industrial Applications

Synthetic diamonds are essential in cutting tools, grinding wheels, drilling bits, and semiconductor heat sinks.

Emerging Technologies

Advanced applications include quantum computing components, high-power electronics thermal management, and optical devices.

Why China Leads the Synthetic Diamond Supply Chain

Production Scale and Cost Advantages

China dominates global synthetic diamond production, accounting for the vast majority of the world's HPHT and CVD diamond output.

Government Support

Supportive policies, including optimized customs procedures and export facilitation through the Shanghai Diamond Exchange, have accelerated industry growth.

Technology Maturity

Chinese producers have achieved significant advancements in both HPHT and CVD processes, improving diamond quality and consistency.

Sourcing Opportunities for Global Buyers

Jewelry Supply Chain

• Cost efficiency: Significantly lower prices than natural diamonds
• Volume availability: Large-scale production ensures consistent supply
• Ethical sourcing: Lab-grown diamonds address consumer demand for conflict-free jewelry

Industrial Abrasives and Tooling

• Cutting and grinding tools
• Drilling equipment
• Precision instruments

Strategic Sourcing Recommendations

• Establish direct supplier relationships with Chinese producers
• Implement comprehensive quality verification protocols
• Maintain a multi-supplier strategy to reduce concentration risk

China's synthetic diamond export surge reflects the industry's maturation from volume growth to value leadership. SourcingX enables buyers to discover, compare, and connect with verified synthetic diamond suppliers.