Diamonds, rare colored gems and signed jewels from important private collections fueled Sotheby’s High Jewelry auction in New ...

Sotheby's sale of 110 lots includes important pieces from the Vanderbilt and Wade families, and a private collection in which their jewels document a lifelong love affair ...

"This diamond is internally flawless," as graded by the Gemological Institute of America, said Alexander Eblen, a senior specialist in gems and jewelry at Sotheby's in New York, where the diamond ...

Sotheby's says the spectacular diamond has the "highest price per carat estimate ever placed on any diamond or gemstone" to come to market Abigail Adams is a Human Interest Writer and Reporter for ...

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 ...

This particular diamond necklace, which is being sold by Sotheby's this fall for an estimated $2.8 million, tells royal-related ones both good and bad. The diamond necklace weighs approximately ...