An Emerald and Diamond Ring. Photo Christie's Image Ltd 2013

The square cut-cornered emerald weighing approximately 10.62 carats, to stepped baguette-cut diamond shoulders and a plain hoop. Price Realized : $113,177

Accompanied by report no.07185 dated 8 February 2013 from The Gem & Pearl Laboratory, London, stating the emerald is natural with moderate clarity enhancement, origin Colombia. 

Christie's. JEWELLERY. 5 June 2013. London, King Street