Interestingly, this improved extraction method has created an unexpected challenge: a glut of giant diamonds too large for typical jewelry use. The glut hasn't been helped by automation in the diamond ...

Diamonds may be forever. But their market value? That might prove less eternal. In a sign of the times spotted by Ars Technica, you can now buy a diamond-generating machine on the Chinese online ...

It used to take the Earth 3 billion years, 2,000-degree temperatures, a little carbon and a lot of pressure to grow a diamond. Now, a new machine can do it in five days. In Kerrville, Texas, a small ...