Add Yahoo as a preferred source to see more of our stories on Google. In 2000, Lee Wenham planned what would have been the world's largest jewel heist, targeting De Beers diamonds valued at more than ...

The 'Ocean Dream,' 5.5-carat fancy vivid blue-green diamond sold for $17.3 million at the Christie's Magnificent Jewels, setting record price for a diamond of its type.

Botswana is seeking support from the United Arab Emirates and Oman as it pursues what could become one of the most ...

On January 26, 1905, the course of gemstone history was altered forever in a small town near Pretoria, South Africa. During a routine inspection at the Premier No. 2 mine, Frederick Wells, the mine’s ...

Add Yahoo as a preferred source to see more of our stories on Google. If you’re feeling blue, Christie’s has just the gem. The auction house is offering an extraordinarily large 31.62-carat blue ...

BOTSWANA, Africa -- A Canadian diamond producer has unearthed the second largest diamond ever found in a land-locked southern Africa country. Lucara Diamond Corp. announced the recovery of a 1,111 ...

A 5.5-carat triangular-cut diamond billed as the largest fancy vivid blue-green diamond known to exist sold for more than 13.5 million Swiss francs ($17.3 million) on Wednesday, Christie’s said, ...