The top lot is the Red Dragon, a 6.43-carat Burmese ruby and diamond ring estimated at $1 million to $1.5 million. The exceptional purplish-red color is natural (many rubies are heat-treated). It is ...

Phillips, known for its record-shattering watch auctions, is upping its game in the jewelry segment just in time for some high-level Christmas shopping. Its December 13 New York Jewels auction is ...