Pair of natural pearl and diamond earrings. Estimate 275,000 — 370,000 CHF. Photo: Sotheby's.

Each set with a slightly brownish grey drop shaped natural pearl measuring 11.49 x 11.77 x 17.95mm and 12.13 x 12.26 x 17.62mm, the caps pavé-set with circular- and single-cut diamonds, suspended from a circular-cut and a cushion-shaped diamond weighing 1.77 and 1.83 carats respectively, hook fittings, one small diamond deficient.

Accompanied by SSEF report no. 73277, stating that the two pearls were found to be natural, saltwater, with no indications of artificial colour modification; together with two GIA reports, stating that the cushion brilliant diamonds are F and D Colour, VVS1 Clarity. 

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