11 avril 2017
A Colombian emerald and diamond ring, Carvin French
Lot 122. A Colombian emerald weighing 3.74 carats and diamond ring, Carvin French. Estimate US$ US$ 40,000 - 60,000 ( €38,000 - 57,000). Photo: Bonhams. centering a rectangular-shaped step-cut emerald, weighing 3.74 carats, enhanced with rectangular-shaped...