Here's the perfect Christmas gift for the person who has everything: A red and green rock, ornament-sized, stuffed with 30,000 teeny-tiny diamonds.
Prehistoric animal tracks in Angola show that a raccoon-size animal, crocodile and dinosaur all drank at the same shallow lake 118 million years ago.
A Brazilian diamond offers clues about large amounts of water beneath the Earth. Continue reading →
Antarctica might have a new kind of ice — diamonds might exist there.
A stunning blue diamond broke a world record today, fetching a price of 6.2 million British pounds, or about $1.8 million per carat.
Diamond inclusions indicate that Earth's carbon cycle extends from the surface to the deep lower mantle.
The Pink Star diamond sold at auction in Geneva on Nov. 13, 2013, for a record $83 million. Here are more photos of the World's Rarest Gemstones.