The extremely rare, 10-carat Mediterranean Blue diamond could fetch a whopping $20 million at Sotheby's High Jewelry auction ...

Old Masters at Sotheby's dominated the list, but a colorful George Condo painting from an online sale also made the cut.

"The Mediterranean Blue" will be auctioned by Sotheby’s this Spring in Geneva with a classification representing less than ...

owned and operated by Stephen Silver Fine Jewelry. “The Mediterranean Blue” is 10.3-carat fancy vivid blue diamond with VS2 clarity that is the highlight of Sotheby's Geneva auction in May.

The historic outdoor auction served as a portal into the ... on every occasion," Jessica Wyndham, who heads up Sotheby's jewelry department in Geneva, told ARTnews. "We met a huge number of ...

Sotheby's will host the first-ever international auction in Saudi Arabia on February ... Mater's The Illumination Series – Islamic objects, jewelry, watches, cars, sports memorabilia, and ...

However, the auction house had initially ... for $881,717 — a record for a piece of jewelry belonging to a rockstar, according to Sotheby’s. A rare surviving school book, signed Frederick ...

Saunders III, a former chairman of the influential conservative think tank the Heritage Foundation, and his wife, Jordan, is going to auction in New York in May. Sotheby’s is billing it as one ...