A remarkable pink diamond, thought to have once belonged to Marie Antoinette, the last queen of France, has recently been ...

The Blue Mound is a huge, flattened ridge of finely textured, pink stone that rises a couple hundred feet above the surrounding plain. It is about 25 miles east of Sioux Falls, ...

A mining company in Angola has recovered what it says is the largest pink diamond the world has seen in 300 years. Miners discovered the 170-carat pink stone at the open pit Lulo alluvial mine in ...

Though a similar rock type can be found in pockets in Turkey and parts of the U.S. southwest, pink tuff is rare outside of the region and Yerevan is the only major city built out of this stone.

A rare Fortune Pink diamond has been sold at an auction in Geneva, Switzerland for an eye-catching amount. The pear-shaped 18-carat stone, thought to be the largest of its kind, fetched £25 million!