An elegant ruby and diamond necklace, by Harry Winston. Photo Christie's Image Ltd 2012

The graduated baguette-cut diamond line enhanced by three larger rectangular-cut diamonds, suspending a detachable twin-row of graduated rubies and brilliant-cut diamonds, mounted in platinum, 35.0 cm. By Harry Winston - Estimate CHF300,000 - CHF450,000

Accompanied by report no. 48278 dated 22 March 2007 from the SSEF Swiss Gemmological Institute stating that the 71 rubies are of Burmese origin, with no indications of heating 

Notes: Christie's Geneva, 16 May 2007, lot 286, sold for Sfr 528,000.

Chrristie's. Geneva Magnificent Jewels, 13 November 2012, Geneva