A fine sapphire and diamond ring

A fine sapphire and diamond ring, set with a cushion-shaped sapphire weighing 4.87 carats, in a mount of bombé design set with brilliant-cut diamonds, mounted in platinum, size J1/2

Accompanied by SSEF report no. 104126 dated January 16th 2019, and GCS report no. 79192-99 dated December 18th 2018, stating that the cushion-cut sapphire weighing 4.87 carats is of Kashmir origin, with no indications of heat treatment