Lot 269. Natural pearl necklace. Estimate 385,000 — 675,000 CHF (351,858 - 616,893 EUR). Photo: Sotheby's.

Composed of seven strands of slightly graduated natural pearls measuring from approximately 3.10 to 9.25mm, the clasp highlighted with brilliant-cut, triangular and baguette diamonds, shortest length approximately 445mm. 

Accompanied by SSEF report no. 85457, stating that the seven hundred and seventy-one pearls were found to be natural, saltwater.

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 17 mai 2016, 10:00 AM