Lot 345. Natural pearl, emerald and diamond necklace. Estimate 40,000 — 60,000 CHF. Lot sold 629,000 CHF. Photo Sotheby's 2013

Designed as a graduated row of natural pearls measuring from approximately 6.6 to 12.2mm, to a clasp set with a rectangular faceted emerald within a border of circular-cut diamonds, length approximately 525mm. 

Accompanied by SSEF report no. 67611, stating that the pearls were found to be natural, saltwater

Property of an important Italian noble family

Sotheby's. Magnificent Jewels and Noble Jewels, Geneva, 14 May 2013