A citrine, diamond and gold ring, by Sterlé. Photo: Christie's Images Ltd 2013

Set with a rectangular-cut citrine, within a single-cut diamond surround, to the baguette-cut citrine gallery and woven gold hoop, mounted in gold and platinum, circa 1955. Signed Sterlé, Paris, no. 7873. Estimate:  $8,000 – $12,000

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