"What we've seen more recently is the supply catching up with the demand," Stewart told CNBC. "Something's definitely shifted ...

The fall auction sales in New York next week are expected to top $1.4 billion, marking a 50% increase from last year, ...

Sotheby's did not disclose the identity of the seller of the brooch, and said that the buyer was a "private collector." ...

In place of the postponed auctions in May, Sotheby's is launching two new online sales. The scene at Sotheby's postwar and contemporary evening sale in New York on November 15. Photo courtesy of ...

This April, amid Watches & Wonders in the heart of Geneva, Sotheby’s will team up with the self-proclaimed “outcast” watch magazine Heist-Out to debut a totally new auction concept. “Rough Diamonds” ...

Sotheby's later this month hopes to make the auction house's first ever sale of an artwork made by a humanoid robot. Ai-Da, a humanoid robot artist, is contributing "AI God," a portrait of Alain ...

She’s a real Vincent van Go-bot. In a first for Sotheby’s, the famed auction house will sell a painting made by a humanoid robot — and it’s expected to fetch up to a whopping $180,000. The robot, ...

Artist Gustav Klimt’s ‘Portrait of Elisabeth Lederer’ hung in the home of a billionaire for decades; now it’s expected to smash auction records.