✨In the workshops of eastern Henan's plains, the roar of six-sided top presses marks the symphony of industrial progress. This China-developed equipment has become a key tool in breaking Western monopolies.
💎Since the first hinged six-sided top press was introduced in 1965, Henan's superhard materials industry has accelerated along the fast track of independent innovation. By 2020, enterprises in Zhecheng County had reduced the single-cycle cultivation period to just six days, with per-batch yields exceeding 20 carats. By 2023, Henan achieved the cultivation of 50-carat giant diamonds, making mass production of 1-30 carat diamonds routine.
🍀Today, Henan boasts a complete industrial chain, with over 300 large-scale superhard materials enterprises—including seven listed companies. Zhecheng County produces over 90% of China’s diamond micropowder and 60% of its monocrystalline diamonds. In late 2024, the Zhengzhou Cultured Diamond International Trading Center was established to develop industry standards and transparent pricing mechanisms.
🧊Henan’s rise in cultured diamonds has directly disrupted global diamond giants—WD, once America’s second-largest diamond dealer, declared bankruptcy, while De Beers was forced to slash prices by 25%. With annual exports reaching 6 million carats, Henan now accounts for half of China’s total output.
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*(Key adaptations for European audiences: "cultured diamonds" instead of "lab-grown" for clarity, "six-sided top presses" for technical accuracy, and contextual explanations like "superhard materials" to encompass both industrial and gem-grade applications.)*
