Diamonds, rare colored gems and signed jewels from important private collections fueled Sotheby’s High Jewelry auction in New York on Friday. The top lot of the sale, as expected based on pre-sale ...

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 ...

A mysterious 18th century necklace made from around 500 diamonds, some of which are believed to have been taken from a piece that contributed to French Queen Marie Antoinette's demise, will go on sale ...

Forbes contributors publish independent expert analyses and insights. Anthony DeMarco reports on watches, jewels, lifestyle, art and culture Sotheby’s September jewelry and watch auctions in Paris ...

The latest blue diamond to hit the auction block certainly lives up to its namesake. The 10.03-carat Mediterranean Blue gem will be the crown jewel at Sotheby’s High Jewelry Auction this May, on sale ...

A diamond brooch that French emperor Napoleon lost while fleeing from the Battle of Waterloo in the early 19th century sold for more than 3.5 million Swiss francs (about $4.4 million) at a Geneva ...

As they say, a piece of jewelry has the power to tell many stories. This particular diamond necklace, which is being sold by Sotheby's this fall for an estimated $2.8 million, tells royal-related ones ...

An extremely large blue diamond netted 48.6 million Swiss francs ($48.5 million), setting a new record price for any jewel at auction, Sotheby’s said. The "Blue Moon" diamond, which weighs 12.03 ...

Sotheby’s has now pulled back the curtain on the curated, multi-category selection that will headline this groundbreaking sale. In an effort to captivate a diverse and discerning audience, the auction ...