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

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

Sotheby’s next jewelry auction wants to help you enter your blue period.

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

A 6.24-carat fancy deep blue diamond, was purchased by Moussaieff Jewellers for $12.7 million. 21 jewels by JAR Fetched $7.1 ...

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

We prefer to do less but ensure that the message is all the clearer,” said CEO Vincent Reynes of the high jewelry collection ...

To illustrate their exceptional color, Reynolds pulled out a blue light in the dark setting to highlight ... Urchin necklace in 18-karat yellow gold and platinum with a fancy intense yellow diamond of ...