A pair of Belle Epoque natural pearl and diamond ear pendants. Price Realized CHF375,750 ($388,275). Photo Christie's Image Ltd 2013

The two drop-shaped slightly grey natural pearls, measuring approximately 11.8-13.8 x 20.5 mm and 11.4-13.4 x 19.9 mm, each with a diamond-set openwork cap and suspended from a diamond-set line, 1910s, 4.3 cm - Estimate CHF80,000 - CHF120,000 ($84,179 - $126,268)

Accompanied by report no. 66628 dated 19 February 2013 from the SSEF Swiss Gemmological Institute stating that the two pearls are natural saltwater pearls, with no indications of artificial colour modification 

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