Lot 246. Natural pearl and diamond necklace. Estimate 125,000 — 200,000 CHF. Photo: Sotheby's

Composed of five strands of slightly graduated natural pearls measuring from approximately 3.40 to 9.30mm, the detachable clasp of open work design highlighted with one natural pearl, circular-, single-cut, cushion-shaped and rose diamonds, shortest length approximately 545mm, clasp detachable and may be worn as a brooch, two small diamonds deficient.

Accompanied by SSEF report no. 86321, stating that the six hundred and eighteen pearls were found to be natural, saltwater.

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 15 nov. 2017, 10:30 AM