A five-strand natural pearl, cultured pearl and diamond necklace. Estimate HK$6,000,000 – HK$8,000,000 ($777,816 - $1,037,088). Photo Christie's Image Ltd 2015

Composed of five strands of natural pearls and two cultured pearls, measuring approximately 2.40 - 8.65 mm, to the openwork circular-cut diamond clasp, mounted in gold, 71.0 cm

Accompanied by report no. 81811 dated 10 September 2015 from the SSEF Swiss Gemmological Institute stating that the analysed properties confirm the authenticity of these nine hundred twelve saltwater natural pearls, one beadless freshwater cultured pearl and one beadless saltwater cultured pearl

Christie's. HONG KONG MAGNIFICENT JEWELS, 1 December 2015, Convention Hall