Lot 432. Property of a British noble family. Magnificent and Extremely Rare natural pearl, emerald and diamond necklace. Estimate 1,500,000—3,000,000 CHF. Lot sold 1,594,500 CHF. Photo Sotheby's

Composed of forty-one pearls measuring from approximately 8.5 to 14.7 mm, to a clasp set with a circular-cut emerald within a border of single-cut diamonds, length approximately 480mm. 

Accompanied by The Gem Testing Laboratory of Great Britain report no. 0128268 stating that the pearls are all natural and by SSEF report no. 52369 stating that the forty-one pearls are natural pearls. Together with a letter from the SSEF. (see next page)

Sotheby's. Magnificent Jewels. 19 Nov 08. Geneva.