Christie's, London, April 2007

Lot 121 An emerald and diamond ring

The square-cut emerald,weighing 11.51 carats between brilliant-cut diamond three stone cluster shoulders, to an openwork gallery and plain hoop
Accompanied by report no. GRS2006-123152, dated 22nd December 2006, from the Gem Research Swiss Lab, Switzerland, stating that the emerald weighing 11.51 carats is of Colombian origin with evidence of minor clarity enhancement