Lot 77. Cultured pearl, onyx, emerald and diamond sautoir, Janesich. Estimate CHF16,000–21,000 ($16,249–21,326). Photo: Sotheby's.

Composed of a strand of emerald beads alternating with baroque shaped cultured pearls, supporting two tassels similarly set, each decorated with a plaque set with onyx, circular-, square- and single-cut diamonds, length approximately 660mm, tassels detachable and can be worn as earrings, signed Janesich, French assay marks.

Sotheby's. Magnificent Jewels and Noble Jewels, Sessions 1 and 2 Geneva, 16 May 2017, 10:30 AM