Lot 2047. A three-strand conch pearl and diamond necklace. Estimate HK$3,000,000 - HK$5,000,000 ($380,000-650,000). Price Realized HK$4,240,000 ($549,388) © Christie's Image 2014

Composed of one hundred forty-one round multi-coloured conch pearls measuring approximately 3.9 to 12.0 mm, alternating with diamond beads, to the brilliant-cut diamond clasp centering upon a light pink button conch pearl, mounted in platinum, 42.5 cm long

Accompanied by report no. 2155964500 dated 27 February 2014 from the Gemological Institute of America stating that one hundred forty-two conch pearls are natural saltwater pearls. The tested pearls show no indication of treatment

Christie's. HONG KONG MAGNIFICENT JEWELS, 27 May 2014, Convention Hall