A Sapphire and Diamond Ring. Photo Phillips.

Centering on an oval-cut sapphire weighing approximately 7.52 carats, framed by tapered trapezoid-cut diamond shoulders, mounted in platinum, size 6. Estimate $18,000 - 25,000

With report no.2155385319 dated 29 April 2013 from the Gemological Institute of America, stating that the sapphire is natural with indications of heat treatment.

Phillips. JEWELS NEW YORK 30 APRIL 2014 10AM - http://phillips.com/