The Beau Sancy Diamond

The Beau Sancy Diamond

Sotheby's via Bloomberg

The Beau Sancy diamond. Weighing 34.98 carats, the modified pear double rose-cut stone was worn by Marie de Medici in her crown at her coronation as Queen Consort of Henri IV of France in 1610. It was sold by Sotheby's Geneva on May 15.