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 ...

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 ...

One of the most amazing uses of marketing ever, they created an artificial tradition by putting it in movies and advertising it while constraining supply. Before middle 20th century it wasn't a ...