A suite of emerald and diamond jewellery, mounted by Cartier. Photo Christie's Image Ltd 2012

Comprising a brooch with square cut-cornered emerald cluster centre within a radiating baguette-cut diamond surround; together with a pair of ear pendants of similar design, the emerald and diamond cluster tops, suspending a single emerald spacer to a larger cluster drop below, circa 1950, 6.0cm and 5.9cm long respectively, ear pendant drops detachable and with further clip fittings. Brooch signed Mtd. Cartier. Estimate: $55,580 – $71,460. Price Realized £61,250 ($98,551).

Accompanied by report no.06506 dated 21 October 2012 from The Gem & Pearl Laboratory, London, stating a random sample of these emeralds were natural, with no evidence of clarity enhancement to significant evidence of clarity enhancement, country of origin Colombia (3)

Christie's. IMPORTANT JEWELS. 12 December 2012. London, King Street - www.christies.com