A rare 10-carat blue fancy diamond could fetch up to $20 million when it goes to auction in Geneva on May 13, auction house ...

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

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

The Mediterranean Blue, a 10.03-carat vivid blue diamond, sold for $21.5 million at Sotheby’s Geneva, becoming 2025’s most ...

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

The cushion-shaped piece, known as the "Mediterranean Blue Diamond," was mined in South Africa and displayed a rare colour that qualified as fancy vivid blue, Sotheby's said. "The market for ...