Diamonds might be forever but that doesn't stop them being bought and sold. One stone thought to have once belonged to Marie ...

A remarkable pink diamond, thought to have once belonged to Marie Antoinette, the last queen of France, has recently been ...

The process requires temperatures of nearly 1400C (2500F) and a lot of pressure. Common talc, some metal electrodes, and a heater tube are also used in the process.

In an age when you can get just about anything online, it's probably no surprise that you can buy a diamond-making machine for $200,000 on Chinese ecommerce site Alibaba. If you, like me, haven't ...

These inclusions remain preserved under high pressure even when the diamond travels via volcano to the Earth’s surface. “Our process is kind of similar,” Wendy Mao says.

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You can buy a diamond-making machine for $200,000 on Alibaba Making diamonds is cheaper than ever, creating a weird problem: too many diamonds. Benj Edwards – Sep 10, 2024 10:08 am | 242 ...