China's lab-grown diamond makers pivot toward AI and chip markets
According to Reuters, Chinese synthetic diamond producers are shifting from jewellery to technology uses, including chip cooling and AI server components.
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what happened
According to Reuters, around 70% of the 2 million carats of lab-grown diamonds made each year at Feng Canjun's factory in China go into jewellery. He aims to lift the share used in functional materials above 50% by 2030 and cut the jewellery share to a maximum of 30%.
China accounts for roughly half of the world's synthetic diamond supply, and competition and falling prices are pushing producers to look for higher-value uses. Analysts see thermal management as the nearer-term opportunity, while use of diamonds as a semiconductor material is further from widespread commercial adoption.
why it matters
If synthetic diamonds become widely used in chips and cooling for AI infrastructure, the industry could gain greater strategic weight in the US-China technology rivalry. Thermal-material suppliers such as Henkel, Dow and Shin-Etsu Chemical could face competition if diamond solutions are adopted at scale.
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sources
- China's lab-grown diamond makers target AI, chip sectors for next wave of growth — Reuters, 26 October 2026 at 23:00 UTC
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