The 41.28ct blue diamond unearthed at the famous Cullinan Mine, could be one of the most significant gemstones ever to be ...

One of the most valuable blue diamonds to ever feature at an auction could sell for more than $48 million, according to Sotheby’s. Named “The De Beers Cullinan Blue,” it is the biggest vivid blue ...

The De Beers Blue, a 15.10-carat internally flawless step-cut Fancy Vivid Blue diamond fetched $15.4 million at auction. The De Beers Blue, the largest vivid blue diamond ever to appear at auction, ...

A 15.1-carat fancy vivid blue diamond will be offered at a single-lot auction at Sotheby’s Hong Kong in April, with an estimate in excess of U$S48 million (HK$380 ...

Choose from a variety of designs, including stud earrings, drop earrings and hoop earrings, all crafted with the finest diamonds. These Blue Nile earrings are versatile and make a dazzling statement.

An exceptionally rare blue gem became one of the most expensive diamonds sold by Christie’s when it went under the hammer in Geneva on Tuesday. An unidentified buyer paid CHF 39,505 million (US$43.8 ...

Update 4/25/2025: The Golconda Blue will not be sold at Christie's in May. Instead, per a spokesperson for the auction house, the owners of the gem are now pursuing a sale within their family. "The ...

GENEVA (AP) — A blue diamond weighing nearly 10 carats has sold at auction in Switzerland for 20.5 million Swiss francs ($25.6 million) including fees. The pear-shaped 9.51-carat “Mellon Blue” — named ...