(In the 1998 book The Nature of Diamonds, the geologist George Harlow and two Russian colleagues wrote simply, "This subject is very new, and many exciting discoveries have yet to be announced.") ...

Jeweler Harry Winston donated the famous Hope Diamond—the largest-known deep blue diamond in the world—to the Smithsonian Institution in 1958. It arrived in a plain brown package by registered ...

"The technology is now at a point that we can grow a more perfect diamond than we can find in nature," he says. Butler, a chemist, pulls from his desk a metal box that brims with diamonds.

I love them because they are rare. I love them because they are a gift given to us by Nature. I love them because certain diamonds — diamonds I have connected with in an almost spiritual way — have ...

For our editors, no red carpet is complete without an appearance from Cartier's exquisite High jewelry collections. Whether ...