June 2 — Huifeng Diamond shares tied to 30CM jumped to the daily trading limit amid a broad rally in the lab-grown diamond sector. The company said the industry is in a recovery phase and has enacted two price increases since 2026, raising prices roughly 5–15%. It warned tungsten, a key material in machine components for producing lab-grown diamonds, has risen notably since last year and is increasing equipment procurement costs. The recent sector surge is largely driven by market talk that diam

June 2 — Huifeng Diamond shares tied to 30CM jumped to the daily trading limit amid a broad rally in the lab-grown diamond sector. The company said the industry is in a recovery phase and has enacted two price increases since 2026, raising prices roughly 5–15%. It warned tungsten, a key material in machine components for producing lab-grown diamonds, has risen notably since last year and is increasing equipment procurement costs. The recent sector surge is largely driven by market talk that diamond heat sinks could displace copper and aluminum in high-power, high-energy AI applications, and some leading AI firms are trialing diamond heat sinks; Huifeng said it does not sell directly to end customers and does not know whether its products are used in those applications.