"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 ...

An exceptionally rare blue diamond went under the hammer in Geneva late Tuesday, selling for $21.5 million, Sotheby's auction house said. "The Mediterranean Blue," a fancy vivid blue diamond weighing ...

The fancy color diamond market is on the upswing, according to a report, with blue diamonds seeing the largest gains. Blue diamonds saw a 5.9% increase in value in the fourth quarter of 2017 in a year ...

Blue diamonds are a geologist’s best friend. At least according to a new study published today in the journal Nature. Diamonds—one of the most sought after gemstones in the world—have started wars and ...

Blue diamonds shine with a particular allure within the cultural zeitgeist. From Titanic’s fictional “Heart of the Ocean” to the real-life, possibly cursed Hope Diamond, these hued gems have captured ...

Christie’s will offer “The Mellon Blue,” a diamond that boasts rarity, exceptional quality and important provenance. It is the first release and no doubt the top lot at Christie’s Geneva Magnificent ...

SACRAMENTO, Calif.--(BUSINESS WIRE)--To kick off the holiday season, Blue Diamond, the world’s leading almond marketer and processor, today announced the launch of a new seasonal flavor: Blue Diamond ...

Sotheby’s and Christie’s will auction a strong collection of rare and important gemstones in New York just in time for the holidays, with both featuring a blue diamond ring as the top lot. On Dec. 4, ...

Sotheby’s said Thursday it will offer a group of eight Fancy blue diamonds that will be sold across its Magnificent Jewels auctions in New York, Geneva and Hong Kong beginning in November through the ...