A Diamond Ring, by David Webb. Photo: Christie's Images Ltd 2013.

Set with a circular-cut diamond, weighing approximately 12.55 carats, within an old European-cut diamond and sculpted 18k gold foliate surround, mounted in 18k gold, circa 1970, in a David Webb black suede pouch. Signed Webb for David Webb. Estimate:  $450,000 – $650,000

THE ESTATE OF THE HONORABLE NOREEN STONOR DREXEL, NEWPORT, RHODE ISLAND

With report 2155484124 dated 3 June 2013 from the Gemological Institute of America stating that the diamond is G color, VS1 clarity

Notes: The center diamond featured in this ring was given around 1947 to Mrs. Drexel by her husband’s grandmother who, at the time, was living in Paris. The current setting was a collaboration between Mr. Drexel and David Webb in the early 1970s.

Christie's. MAGNIFICENT JEWELS. 15 October 2013. New York, Rockefeller Plaza.