) The 2025 Diamond Industry Cultivation Conference opened in Zhengzhou on the 6th. Thirty industry-chain projects were signed on site, with a total investment of not less than 15 billion yuan. In his speech, Zhuang Jianqiu, mayor of Zhengzhou City, said that at present, the number of enterprises on the chain cultivating diamonds in Zhengzhou has reached 122, and the scale of the industry has exceeded 15 billion yuan. According to public data, China contributed more than 75% of the global rough production of cultivated diamonds in 2024, and Zhengzhou accounted for about 30% of the country's total output.

) The 2025 Diamond Industry Cultivation Conference opened in Zhengzhou on the 6th. Thirty industry-chain projects were signed on site, with a total investment of not less than 15 billion yuan. In his speech, Zhuang Jianqiu, mayor of Zhengzhou City, said that at present, the number of enterprises on the chain cultivating diamonds in Zhengzhou has reached 122, and the scale of the industry has exceeded 15 billion yuan. According to public data, China contributed more than 75% of the global rough production of cultivated diamonds in 2024, and Zhengzhou accounted for about 30% of the country's total output.