Natural pearl and diamond necklace, one pearl cultured. Estimate 69,000 — 139,000 CHF. Photo: Sotheby's.

Composed of six strands of natural pearls graduated in size from approximately 3.10 to 6.90mm, one pearl cultured, decorated with gold spacers set with brilliant-cut diamonds, length approximately 400mm, British assay and maker's marks.

Accompanied by SSEF report no. 79257, stating that six hundred and thirty-six pearls were found to be natural, saltwater, and that one pearl was found to be cultured.

Sotheby's. Magnificent Jewels and Noble Jewels, Genève, 12 mai 2015, 10:30 AM