It takes the Earth more than a billion years to forge a diamond. Feng Canjun can grow one in the space of a week.
On a sweltering summer afternoon in Zhengzhou, capital of the central Chinese province of Henan, Feng’s Jiaruifu diamond factory hums with energy. Inside, 600 machines, each larger than an African elephant, simulate the crushing geological pressure and diabolical heat deep in the Earth’s surface, where diamonds grow. The machines can turn out three-carat diamonds, the size of a large engagement ring, in just seven days.
“We can mass-produce diamonds,” Feng says, proudly pointing to the rows of machines. He has another two factories working around the clock. “Currently, I produce about 100,000 carats a month,” he adds.
您已閱讀5%（737字），剩余95%（14223字）包含更多重要信息，訂閱以繼續探索完整內容，并享受更多專屬服務。