Turquoise jewelry @ Sotheby's. Magnificent Jewels, 14 Apr 11, New York

Pair of 18 Karat White Gold, Turquoise and Diamond Earclips, de Grisogono, Geneva. Photo Sotheby's

Set with cabochon turquoise segments weighing 29.80 carats, accented by small round diamonds weighing 2.00 carats, with retractable posts, signed de Grisogono, Geneve, numbered B41268. With signed box. Estimate 15,000—20,000 USD. Lot Sold 17,500 USD

Together with a Certificate of Authenticity from de Grisogono.

Platinum, Cultured Pearl, Turquoise, Sapphire and Diamond Brooch.  Photo Sotheby's

Of bombé design set in the center with a cultured pearl measuring approximately 12.5 mm., framed by round diamonds weighing approximately 5.50 carats, round and marquise-shaped sapphires, and turquoise cabochons. Estimate 6,000—8,000 USD. Lot Sold 7,500 USD

Sotheby's. Magnificent Jewels, 14 Apr 11, New York www.sothebys.com