Huanghe Whirlwind said its wholly owned unit Lianyi Diamond (Henan) Co. issued a price-adjustment notice raising prices for large single-crystal products (lab-grown diamond blanks) by 10% effective Nov. 1, 2026. The company cited sharply higher opera

2026-11-04

Huanghe Whirlwind said its wholly owned unit Lianyi Diamond (Henan) Co. issued a price-adjustment notice raising prices for large single-crystal products (lab-grown diamond blanks) by 10% effective Nov. 1, 2026. The company cited sharply higher operating costs and sustained CNY appreciation as drivers. The increase applies only to the subsidiary’s large single-crystal products; other product lines were not raised. This is the second price increase this year, after a March adjustment.