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 ...

If you gaze into the Winston Red Diamond long enough, it almost seems to burn. The 2.33-carat gem gleams a deep, saturated crimson, as if the Earth itself bled light into its facets. This tiny stone ...

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 ...

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 ...

A blue diamond weighing nearly 10 carats has sold at auction in Switzerland for 20.5 million Swiss francs ($26.6 million) ...

The stone, unearthed at the Karowe mine in northeastern Botswana, is now under study by the Gemological Institute of America (GIA). Their researchers believe the diamond likely formed in two distinct ...

In the world of high jewelry, it doesn’t get much bigger—or pricier—than rare colored diamonds, and on Tuesday, Christie’s announced the sale of the Eden Rose, a 10.2-carat pink diamond. The gemstone, ...

Eleanor has an undergraduate degree in zoology from the University of Reading and a master’s in wildlife documentary production from the University of Salford. Eleanor has an undergraduate degree in ...