The Harry Winston piece, a 23.13-carat, emerald-cut diamond ring owned by Olympic gold medalist Katherine Domyan sold for $444,500 at Bonhams’s New York sale, wrote Rapaport in its press release.
The stone had I-colour and I1-clarity grading and was estimated at $250,000 to $350,000.
“We had considerable interest in our top lots with buyers from more than 20 countries participating in the sale,” said Caroline Morrissey, senior jewellery specialist for Bonhams New York. “We were privileged to be chosen to sell the Katherine Domyan collection of jewellery, and were delighted to see how well it captured interest from buyers all over the world.”
Among other diamonds sold at the auction were Domyan’s 86.30-carat diamond fringe necklace sold for $492,500 and another 66.20 carats necklace that fetched $324,500.
Art Deco jewellery also performed well: a ruby and diamond Van Cleef & Arpels bracelet earned $504,500; a 1925 emerald and diamond Art Deco bracelet by Tiffany sold for $187,500.
Bonhams’s next Fine Jewellery sale will take place on Wednesday in London, followed by Hong Kong in November and a New York auction in December.