An emerald and diamond necklace and earring suite. Photo Philips de Pury & Co

The necklace designed as a series of graduating undulating pavé-set diamond spirals, each spiral set to the centre with a circular-cut emerald, to similarly set diamond scrolling spacers, length 37 cm, together with a pair of earrings of similar design, length 5.7 cm. collapsible post and clip fittings; total emerald weight approximately 35.26 carats; total diamond weight approximately 23.29 carats. ESTIMATE £110,000-150,000 - Unsold

PROVENANCE Accompanied by a copy of report number 08-G-0465, dated 14 March 2008, from the Gem Tech Lab, Geneva, stating that the emeralds to be natural and likely to be of Colombian origin.

Philips de Pury & Co. Jewels. 1 june 2011. London