$165,000
Unmounted Diamond, the old European-cut diamond measuring approx. 10.62 x 10.76 x 5.93 mm, and weighing 4.07 cts., originally part of, and pictured with, lot 494A. Note: Accompanied by GIA report no. 2175328715, dated September 25, 2015, stating that the diamond is D color, VS2 clarity. Accompanied by Diamond Type Classification Report dated September 28, 2015, stating that the diamond has been determined to be a type IIa. Type IIa diamonds are the most chemically pure type of diamond and often have exceptional optical trasparency. Type IIa diamonds were first identified as originating from India (particularly from the Golconda region). Provenance: From the collection of a prominent British American family. According to family oral history, most of the stones and pearls were purchased in the 1880s or 1890s by the family patriarch, a successful banker who maintained residences in the United States, Great Britain, and France.
Auctioneer:
Skinner
Date:
2015-12-08