The Marie-Thérèse Pink, thought to have belonged to Marie Antoinette, was auctioned by Christie’s in New York.

The Marie-Thérèse purple-pink diamond, a 10.38 carat stunner, fetched a record $13.98 million at Christie's Magnificent ...

This tiny stone is an anomaly of geology. It is the rarest kind of diamond — graded “Fancy red,” pure and unmodified by other ...

The 10.38-carat gemstone, which carries an estimate of $3 million to $5 million, was owned by generations of European royalty ...

While it may look like a blazing red ruby, the 2.33-carat Winston Red Diamond is just that—a diamond. One of the rarest ...

An exceptionally-rare blue diamond went under the hammer in Geneva late Tuesday, selling for US$21.5 million, Sotheby’s auction house said. “The Mediterranean Blue”, a fancy vivid blue ...

AFP GENEVA: 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 ...

'The Mediterranean Blue' was displayed in Abu Dhabi in April - Copyright AFP/File Jade GAO 'The Mediterranean Blue' was displayed in Abu Dhabi in April - Copyright ...

Sotheby's Geneva auction will feature the stunning 10-carat "Mediterranean Blue Diamond," estimated to fetch $20 million. This rare, fancy vivid blue diamond, sourced from South Africa ...

A rare 10-carat blue fancy diamond could fetch up to $20 million when it goes to auction in Geneva on May 13, auction house Sotheby’s said on Thursday. The cushion-shaped piece, known as the “ ...