18 Karat Gold, Amethyst and Enamel Bracelet and Ring, David Webb - photo Sotheby's

The bracelet composed of fluted amethyst segments spaced by ribbed gold links applied with green enamel, length 8 inches, signed David Webb; the ring centered by a cabochon amethyst measuring approximately 24.6 by 17.8 by 13.0 mm, within an octagonal frame applied with green enamel, size 5¾, fitted with inner sizing band, signed Webb. Estimation: 35,000 - 45,000 USD