Only about 30 percent of natural diamonds are considered gem-worthy, and among those, less than 1 percent are fancy color diamonds—that is, diamonds of unusual color. While the latter come in ...

If 'The Golconda Blue' went to auction it would have been the largest fancy vivid blue diamond to have been presented at a ...

Sotheby's Geneva is showcasing the "Mediterranean Blue Diamond," a 10-carat gem expected to fetch $20 million at auction.

A 10-carat blue diamond which could fetch $20 million when it goes under the hammer later this month was presented by auction ...

Sotheby's High Jewelry Sale later this May is bringing plenty of gems to the auction block, such as the Mediterraean Blue and ...

One company in particular being Le Vian Corp. Eddie LeVian: We found these beautiful, natural fancy color brown diamonds that were coming out of the Argyle Mine of Australia that were quite ...

Christie’s is getting ready to present The Golconda Blue, the largest Fancy ... extraordinary color and exceptional size, The Golconda Blue is truly one of the rarest blue diamonds in the ...

Sotheby's in Geneva introduces the 10-carat 'Mediterranean Blue Diamond,' a rare fancy vivid blue gemstone mined in South ...

Among the lots that sold at Phillips Geneva auction, 87% of them exceeded their presale low estimates, with more than half ...

Only about 30 percent of natural diamonds are considered gem-worthy, and among those, less than 1 percent are fancy color diamonds—that is, diamonds of unusual color. While the latter come in ...