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 ...

Explorers find evidence of a rare green diamond in Finland, with minerals pointing to its origin hidden beneath the ice.

A 9.51-carat blue stone that once belonged to the heiress Bunny Mellon sold for $7 million less than at its last auction, a ...

Extreme geological events, like the kind that form mountains, can ‘deform’ a diamond, giving some their unique colors, experts said.

A rare blue diamond set in a ring sold for $43.8 million at a Christie's auction in Geneva. Christie's said that the 17.61-carat diamond, the Bleu Royal, is among the rarest to exist. The Gemological ...

In Geneva, sales at the three auction houses totaled $145,934,377, including $77,703,074 at Christie’s Magnificent Jewels; $46,531,921 at Sotheby’s Magnificent and Noble Jewels; and $21,699,382 at ...

An exceptionally rare, 14.83-carat “fancy vivid purple-pink internally flawless” diamond is expected to fetch up to $38 million at a Sotheby’s auction next month, the auction house said Monday. The ...

Ilan also shared some words for Ben and J.Lo via his Instagram. “Congratulations Ben & @jlo on your engagement. It was my honor to be part of this exciting journey, on a quest to source such an ...

BOCA RATON, Fla., March 24, 2016 /PRNewswire/ -- Back in 2007, a South Florida man purchased a beautiful $2 million pink diamond ring for his wife. Now, the unique 10.07-carat pink diamond will be ...