NATURAL PEARL AND DIAMOND NECKLACE, CIRCA 1915 AND LATER The cushion-shaped and rose-cut diamond links issuing a graduated series of pierced and similarly-set navette-shaped plaques, between six bouton-shaped natural pearls, suspending a later cultured pearl drop, via articulating cushion-shaped and rose-cut diamond links, mounted in platinum, cushion-shaped diamonds approximately 3.65cts total, necklace adapted, clasp signed Cartier Paris Londres, French assay marks, lengths: necklace 44.0cm, pendant 2.7cm 注脚 Accompanied by a report from The Gem & Pearl Laboratory stating that the bouton-shaped pearls are natural, saltwater and the round pearl drop is cultured. Report number 20170, dated 2nd July 2021.Provenance:Sold Sotheby's London, 15th December 2009, lot 459.