Lot 120. A natural pearl, cultured pearl and diamond necklace, Cartier. Estimate US$ 50,000 - 70,000 '€41,000 - 58,000). Sold for US$ 37,500 (€31,231). Photo: Bonhams. 

centering an emerald-cut diamond, weighing 4.35 carats, flanked by baguette-cut diamonds; mounted in platinum; size 5 1/4

Accompanied by GIA report # 5182587634, dated July 24, 2017, stating the pearls as: Natural, Saltwater, no indications of treatment.

Bonhams. FINE JEWELLERY, 19 Sep 2017, 13:00 EDT, NEW YORK