A natural pearl and diamond necklace, by Tiffany & Co. Photo Christie's Image Ltd 2014.

Composed of thirty-nine graduated natural pearls, measuring approximately 11.4 to 7.1 mm, to the diamond-set clasp, mounted in platinum and gold, 39.5 cm. Signed T&Co. for Tiffany & Co. Estimate CHF180,000 – CHF270,000 ($205,297 - $307,946)

Accompanied by report no. 72718 dated 14 February 2014 from the SSEF Swiss Gemmological Institute stating that the pearls are natural saltwater pearls

Christie's. GENEVA MAGNIFICENT JEWELS, 14 May 2014, Geneva - http://www.christies.com/