18 karat white gold, titanium, diamond and  coloured diamond bangle-bracelet. Photo Sotheby's

The hinged bangle composed of meandering vines set with round diamonds, accented by flowers set in the centers with round and square-cut diamonds of yellow hue weighing 1.37 carats, the petals composed of blue anodized titanium, accented by small round diamonds, the total near colorless diamond weight 9.37 carats, internal circumference 7 inches. Lot 35. Estimation 15,000-20,000 USD

Sotheby's. Magnificent Jewels. New York | 18 avr. 2012, 10:00 AM www.sothebys.com