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

Christie's is getting ready to present The Golconda Blue, the largest Fancy Vivid Blue Diamond ever to be offered at auction. Weighing 23.24 carats, this gemstone will headline Christie's ...

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

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 ...

Christie’s is getting ready to present The Golconda Blue, the largest Fancy Vivid Blue Diamond ever to be offered at auction. Weighing 23.24 carats, this gemstone will headline Christie’s ...

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 ...