A 19th century sapphire and diamond five stone ring

A 19th century sapphire and diamond five stone ring, alternately set with circular-cut diamonds and cushion-shaped sapphires in carved and yellow gold mount. Size Q 1/2.

Accompanied by report number 20026104 dated 4th November 2015 from Anchorcert, Birmingham stating that the central stone is a natural sapphire measuring 6.5 x 6.3 x 3.81mm.