The 23.24-carat “Golconda Blue” fancy vivid blue diamond has been pulled from the May 14 Christie’s Geneva Magnificent Jewels sale. If it went to auction it would have been the largest fancy vivid ...

“This is the most famous blue diamond that's coming up for sale for the first time ever in over 100 years.” :: The boron in this diamond gives it its blue color and also makes it electro-conductive ...

Christie’s has announced what is sure to be a blockbuster sale in the jewelry world: the sale of a 23.24-carat fancy Golconda blue diamond. It is the largest of its kind to ever be offered at auction ...

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 rare diamond went up for auction in Geneva on Tuesday One of the world’s rarest blue diamonds has sold for nearly $44 million at an auction. The “Bleu Royal” diamond set upon a ring went under the ...

Forbes contributors publish independent expert analyses and insights. Kate Matthams Spencer is a Paris-based writer who covers jewelry. A 41.28ct, ice-blue diamond has been unearthed at the famous ...

Blue diamonds are considered the rarest and most desired on the market. A particularly big one sold for millions at Sotheby’s on Thursday, scraping just beneath the surface of its $26 million ...

A rare blue diamond was on display Tuesday at an exhibition of $100 million worth of the world’s rarest diamonds in the United Arab Emirates’ capital, Abu Dhabi. The eight diamonds on display at the ...

The latest blue diamond to hit the auction block certainly lives up to its namesake. The 10.03-carat Mediterranean Blue gem will be the crown jewel at Sotheby’s High Jewelry Auction this May, on sale ...

Blue is beautiful when it comes to diamonds. Two of the top three to have fetched the highest prices for coloured diamonds at auction are “fancy vivid” examples – the top spot still belongs to the CTF ...