It is one of the largest and rarest stones of its kind ever discovered in the African country.

Add Yahoo as a preferred source to see more of our stories on Google. Sotheby’s next jewelry auction wants to help you enter your blue period. To be sure, the auction house’s High Jewelry Sale, taking ...

Add Yahoo as a preferred source to see more of our stories on Google. A rare blue diamond was on display Tuesday at an exhibition of $100 million worth of the world’s rarest diamonds in the United ...

The auction reflects the continued strength in fancy-colored diamonds and exceptional colored gemstones at the high end of ...

What will $50 million get you at auction? Last month, Sotheby’s sold Sandro Botticelli’s Man of Sorrows painting for $45.5 million, and today it announced it is offering another masterpiece that's ...

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 sign of profound shifts in the diamond industry. By Ashley Ahn A 9.51-carat ...

Is the global turmoil driving sales of portable assets? Or is it just a love of rare jewels? By Jill Newman Alisa Moussaieff was in her London office on May 14, having lunch and bidding over the phone ...

Sotheby’s next jewelry auction wants to help you enter your blue period. To be sure, the auction house’s High Jewelry Sale, taking place on Tuesday, May 13 in Geneva, will offer up a slew of gems ...