The Azure Blue is one of two important blue diamonds being offered at Christie’s. The second is a 5.04-carat fancy vivid blue ...

The 31.62-carat Azure Blue, the biggest fancy blue diamond to come to auction, could fetch up to $8.5 million at Christie's ...

Despite the setback, the Sotheby's sale totaled more than $30 million, with 93% of lots sold. It was the highest ...

“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 ...

The diamond, known as Ocean Dream, had an estimate of about $9-12 million.

The triangular-cut blue-green stone has a color so improbable that, as the Gemological Institute of America notes in its ...

Add Yahoo as a preferred source to see more of our stories on Google. The latest blue diamond to hit the auction block certainly lives up to its namesake. The 10.03-carat Mediterranean Blue gem will ...

On Wednesday, a blue diamond at a Hong Kong auction house achieved one of the highest prices for any diamond on the open market. The "De Beers Blue" diamond sold for $57.5 million, Sothebys auction ...

From brilliant blues to fiery reds, discover how nature crafts diamonds in every color, and why some shades are rarer than the rest Emma Saaty Selections from the Winston Fancy Color Diamond ...

The world's largest Fancy Vivid blue-green diamond, "The Ocean Dream," is captivating the luxury market at Christie's Geneva ...

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 ...