Sotheby's, London, June 1998

Lot 163 Emerald and Diamond Ring

The large step-cut emerald weighing 12.75ct claw-set between baguette diamond single-stone shoulders case

Accompanied by a certificate from Gemresearch Laboratory, Lucerne, Switzerland, no. 9804012, stating the emerald to be from Colombia. Enhanced areas are dried out, minor residues of solid and liquid material