A sapphire and diamond bombé shaped ring

A sapphire and diamond bombé shaped ring, the oval shaped sapphire is set to a foliate pierced white gold mount with textured shank. Size N.

Accompanied by report number 73526 from SSEF, Switzerland dated 17th March 2014 stating that the antique cushion cut sapphire measures 11.34 x 8.11 x 5.29mm, weighs 4.896cts, and is a natural colour-change sapphire: blue in daylight, purple in incandescent light. With no indications of heat treatment. Origin. Sri Lanka.