An important natural pearl necklace. Photo Christie's Image Ltd 2012

The graduated single-row of thirty-five natural pearls, to the openwork diamond-set scroll design clasp. Estimate £500,000 - £800,000. Price Realized £589,250 ($948,103)

Accompanied by report no.65590 dated 6 November 2012 from The Swiss Gemmological Institute (SSEF), stating the 35 pearls are natural, saltwater 

The graduated single-row of thirty-five natural pearls, to the openwork diamond-set scroll design clasp
Accompanied by report no.65590 dated 6 November 2012 from The Swiss Gemmological Institute (SSEF), stating the 35 pearls are natural, saltwater:

The property of a countess.

Christie's. Important Jewels. 12 December 2012. London, King Street