Lot 502. From the Estate of Carroll Petrie. A multi-strand aquamarine bead and gold necklace, by Verdura. Estimate: $8,000 – $12,000. Photo Christie's Image Ltd 2015

Designed as a series of twelve strands of faceted aquamarine beads, joined to a fluted gold three-row clasp, length adjustable, mounted in 18k gold, in a Verdura light blue leather envelope case. Signed Verdura

Christie's. MAGNIFICENT JEWELS, 10 December 2015, New York, Rockefeller Plaza