A pair of natural pearl and diamond ear pendants. Price Realized CHF459,750 ($475,075). Photo Christie's Image Ltd 2013

The two natural drop-shaped pearls, one of cream colour measuring approximately 12.5-12.7 x 19.1 mm, one of grey colour measuring approximately 12.9 x 20.0 mm, each suspended from a baguette and brilliant-cut diamond line, to the rectangular-cut and marquise-shaped diamond cluster top, mounted in platinum, 6.3 cm - Estimate CHF250,000 - CHF350,000 ($263,058 - $368,282)

Accompanied by report no. 65848 dated 21 November 2012 from the SSEF Swiss Gemmological Institute stating that both pearls are natural saltwater pearls, with no indications of artificial colour modification, and an Appendix letter indicating that the pearls '...both show an attractive rosé overtone, poetically also referred to as the "orient of pearls".' 

CHRISTIE'S. MAGNIFICENT JEWELS, 15 May 2013, Geneva