Lot 197. An impressive natural pearl and diamond necklace, by Alexandre Reza. Estimate CHF1,100,000 – CHF1,650,000 ($1,131,250 - $1,696,875). Price realised CHF 1,325,000. Photo Christie's Image Ltd 2016

Designed as a twin line of circular-cut diamonds with diamond-set cross-shaped motifs, enhanced by four natural button-shaped pearls at the front, weighing approximately 79.83, 101.15, 101.28 and 85.32 grains, 36.0 cm, mounted in gold, in black suede Alexandre Reza case. Signed A. Reza 

Accompanied by report no. 84244 dated 19 February 2016 from the SSEF Swiss Gemmological Institute stating that the four pearls are saltwater natural pearls.

Christie's. GENEVA MAGNIFICENT JEWELS, 18 May 2016, Geneva