A 10.33-carat Burmese ruby sold for an impressive $5.5 million after a six-minute bidding war among two bidders on the phone and one in the New York saleroom at Sotheby’s Magnificent Jewels auction.

Sotheby’s and Christie’s sold a combined $158,152,390 worth of jewels this week in New York, in sales that were dominated by spectacular named diamonds (flawless, colored, or huge), along with ...

Almost 52 years ago, Candy Udell, the president of London Jewelers, the jewelry titan on Long Island and beyond, got engaged to Mark Udell. Her ring? A pear-shaped diamond. “It was all the rage then,” ...