
The sapphire clip brooch was sold at Sotheby's landmark sale of the Duchess of Windsor’s personal collection in 1987. Price realized? $1,026,667. At that same sale was the fully articulated onyx and diamond bracelet Cartier had created for her in 1952. It sold in 1987 for about $1.2 million and then reappeared at a Sothebys' sale in 2010 where it broke the record for any Cartier jewel—and any bracelet sold at auction—when the hammer went down at $4.4 million.