A two-strand natural pearl and diamond necklace. Estimate CHF110,000 – CHF160,000 ($115,761 - $168,380). Photo Christie's Image Ltd 2015.

Composed of seventy-nine and seventy-three natural pearls, measuring approximately 9.4 to 4.4 mm, to the openwork single-cut diamond wavy clasp, mounted in gold, 48.5 cm 

Accompanied by report no. 77776 dated 10 December 2014 from the SSEF Swiss Gemmological Institute stating that the 152 pearls are natural saltwater pearls 

Christie's. GENEVA MAGNIFICENT JEWELS, 13 May 2015, Geneva