An emerald and diamond ring. Photo Bonhams.

centering a octagonal step-cut emerald, weighing 6.01 carats, surrounded by tapered baguette and circular-cut diamonds; estimated total diamond weight: 2.00 carats; mounted in platinum; size 6 1/4. Estimate US$ 60,000 - 80,000 (€44,000 - 59,000)

Accompanied by Swiss Gemological Institute (SSEF) report #062728, dated June 24, 2012, stating the emerald is: Columbian origin.

Bonhams. FINE JEWELLERY, New York, 17 Jun 2014 11:00 - http://www.bonhams.com/