A Set of Belle Époque Diamond and Enamel Jewelry, by Paulding Farnham, Tiffany & Co. Photo Christie's Image Ltd 2014

Designed as an openwork enamel foliate plaque, set with rose-cut diamonds and enhanced with collet-set circular-cut diamonds, to the foliate link neckchain, set with collet-set old European-cut diamonds; and a pair of ear pendants en suite, mounted in platinum and gold, circa 1900, 14¼ ins. Necklace signed Tiffany & Co., by Paulding Farnham; ear pendants not signed (2). Estimate: $150,000 – $250,000

Christie's. MAGNIFICENT JEWELS, 16 April 2014, New York, Rockefeller Plaza -www.christies.com