Fine diamond ring, Sterlé - Photo Sotheby's

The brilliant-cut diamond weighing 9.54 carats, set between baguette diamond shoulders, size 461/2, signed Sterlé Paris, French assay marks. Estimate: 275,000 - 455,000 CHF - Lot Sold: 338,500 CHF

Accompanied by GIA report no. 2155043587, stating that the diamond is H Colour, VS1 Clarity.

CATALOGUE NOTE: Pierre Sterlé was a French jeweller renowned through the post-war years for his revolutionary designs and technical expertise. His love of nature is evident in his use of birds, flowers, feathers, leaves, and arrows, reoccurring motifs in the pieces he exclusively designed for his elite clientele. Known for his brooches, necklaces, and bangles, a Sterlé ring is fairly unique. Sterlé joined Chaumet as a designer in 1976 and closed his doors forever, thereby increasing therarity and value of any Sterlé jewel.

Sotheby's. Magnificent Jewels. Geneva | 14 Nov 2012 www.sothebys.com