A large oval-shaped sapphire and diamond cluster ring

A large oval-shaped sapphire and diamond cluster ring, the sapphire weighs approximately 14.20cts and is set within a surround of circular-cut diamonds in white gold. Size M.

Accompanied by report number 11120 dated 14th April 2015 from The Gem and Pearl Laboratory, London stating that the sapphire measures 16.7 x 14.6 x 6.8mm and is a natural sapphire with no evidence of heat treatment observed. Origin opinion; Sri Lanka.