Lot 234. Colombian emerald and diamond pendant necklace. Estimate 49,000 — 73,000 CHF. Lot sold 230,500 CHF. Photo: Sotheby's 2012

Designed as a detachable brooch/pendant set at the centre with a step-cut emerald within a border of circular-cut and tapered baguette diamonds, suspended from a necklace set with step-, brilliant-cut and baguette diamonds, length approximately 405mm, brooch fitting.

Accompanied by SSEF report no. 65334, stating that the emerald is of Colombian origin, with no indications of clarity modification.

Sotheby's. Magnificent Jewels, Geneva, 14 Nov 2012