A diamond and treated colored diamond butterfly brooch, by Carvin French. Photo: Christie's Images Ltd 2010 Designed as a butterfly, the body centering upon a cushion-cut diamond, weighing approximately 5.02 carats, flanked by two inverted pear-shaped...

A diamond and aquamarine bracelet, by Verdura, Carvin French Designed as a series of three faceted aquamarine beads, each flanked on either side by a square-cut diamond rondelle with a circular and single-cut diamond cap, alternated by elongated single,...