Two-Color Gold, Diamond and Colored Diamond Ring, Verdura. Photo Sotheby's

Of bombé form set in the center with a round diamond of fancy yellow-brown color weighing 10.53 carats, framed by round diamonds of brown, orange and yellow hues weighing approximately 2.80 carats, accented by round near colorless diamonds weighing approximately 2.75 carats, size 5½, signed Verdura. Estimate 75,000—100,000 USD. Lot Sold 98,500 USD

Accompanied by GIA report no. 2125860483 stating that the 10.53 carat diamond is Fancy Yellow-Brown, Natural Color, VS1 clarity.

18 Karat Gold, Cocobola Wood and Citrine 'Five Stone' Cuff Bracelet, Verdura. Photo Sotheby's

The hinged cuff composed of carved cocobola wood, set in the center with emerald-cut citrines weighing approximately 27.25 carats, internal circumference 6 inches, signed Verdura. With signed box. Estimate 10,000—15,000 USD. Lot Sold 20,000 USD

18 Karat Gold, Chalcedony and Amethyst Brooch, Verdura. Photo Sotheby's

Set in the center with an oval cabochon chalcedony measuring approximately 23.3 by 18.1 mm., framed by oval cabochon amethysts measuring approximately 11.1 by 8.6 mm., signed Verdura. Estimate 6,000—8,000 USD. Lot Sold 11,250 USD

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