LONDON - A diamond ring that’s the ultimate in bling is set to go under the hammer, with an estimated price of $15 million to $25 million. Sotheby’s auction house says the Cartier ring holds an 8.01 ...

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 ...

When the De Beers Cullinan Blue, a 15.10-carat step-cut fancy vivid blue diamond, goes on the block at Sotheby’s Hong Kong at the end of April, it will carry an estimated price tag of $48 million, the ...

new video loaded: Blue Diamond Sells for Bargain Price of $25.6 Million transcript The rare Mellon Blue 9.51-carat teardrop-shaped blue diamond sold for $25.6 million at an auction on Tuesday – $7 ...

A unique blue diamond ring has made its way to Asia, honored with celebrity recognition and being displayed at various society events around Singapore. Newly named “The Jane Seymour,” the 2.08-carat ...

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, ...

Two of the most famous blue diamonds in history had shocking results on the auction block. Christie's sold the Oppenheimer Blue (shown above) for a whopping $57.8 million today in Geneva, which set a ...

A Pear-shape Type IIa Fancy Pink diamond ring and a Cushion-cut Type IIb Fancy Blue diamond ring are now available by private appointment at selected jewelry stores nationwide. These rare diamonds are ...