The Lesedi La Rona diamond is the second-largest diamond discovered in over a century. But it failed to sparkle enough interest from bidders at a June 28 Sotheby’s auction in London. A ...

The world’s second largest-ever diamond has been unearthed at a mine in Botswana. The Botswana government said the huge 2,492 ...

The Smithsonian’s National Museum of Natural History has acquired the 2.33-carat "Winston Red Diamond," as part of the “Winston Fancy Color Diamond Collection.” ...

One of the largest diamonds ever found has been unearthed and will be put on show on Thursday. The Botswana government believes the huge 2,492-carat stone is the second biggest ever brought out of ...

AMONG the subjects which attracted the attention of the able and versatile geologist of Philadelphia—whose early death was so deeply mourned both in this country and the United States—was that ...

Cullinan diamond, a staggering 3,106 carat stone, is the biggest diamond in the world. It was found in South Africa in 1905 by Sir Thomas Cullinan. Koh-i-Noor, one of the most famous diamonds in ...