Lot 399. Natural pearl and diamond necklace.  Estimate 100,000 — 150,000 CHF. Lot sold 350,500 CHF. Photo: Sotheby's 2012

Designed as a single row of natural pearls graduating from approximately 5.45 to 10.70mm, the clasp set with four natural pearls, one of brown tint and highlighted with single-cut and rose diamonds, length approximately 545mm, French assay and indistinct maker's marks.

Accompanied by SSEF report no. 64240, stating that the pearls were found to be natural, saltwater.