The 'Picasso diamond' shows complex growth patterns highlighted by cathodoluminescence Geoscientists can't say if diamonds are forever, but they can say that some are already billions of years old.

Black carbonado diamonds are among the rarest gems on Earth, and a 555-carat specimen going to auction in February is especially noteworthy. As the Associated Press reports, "The Enigma" diamond is ...

Western Australia’s pink diamonds were brought to the surface from deep underground around 1.3 billion years ago when the former supercontinent Nuna broke up. Pink diamonds are extremely rare and ...

Visitors to the American Museum of Natural History may be attracted by glitter, but scientists see more in the unusual stone. By David Belcher Few of the visitors who marvel at the Okavango Blue ...

The largest uncut diamond ever found was the Cullinan, discovered in 1905 about 18 feet below ground in the walls of the Premier diamond mine, about 24 miles east of Pretoria, South Africa. The ...

CC0 Usage Conditions ApplyClick for more information. Each year, millions of visitors come here to see one of the most iconic specimens exhibited in any museum, the Hope Diamond. Renowned jeweler ...