A 15.1-carat fancy vivid blue diamond is projected to be auctioned for a whopping $48 million — the highest estimate ever for a blue diamond. The gemstone — known as the De Beers Cullinan Blue ...

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 ...

A 7.59-carat round fancy vivid blue diamond is being offered as the top lot in Sotheby’s Hong Kong Magnificent Jewels and Jadeite sale scheduled for October 7 at the Hong Kong Convention and ...

The necklace featured a pear-shaped, 8.01-carat fancy vivid blue internally flawless diamond with a 1.06-carat circular-cut fancy intense pink diamond and a circular diamond “spacer” above it.

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 ...