A sapphire and diamond ring, of cluster design, claw-set with a cushion-shaped sapphire weighing

A sapphire and diamond ring, of cluster design, claw-set with a cushion-shaped sapphire weighing 4.78 carats, within a border of brililant-cut diamonds, mounted in white gold, size L, case stamped Lopez y Fernandez, Madrid

A verbal report from GCS states that the sapphire is of Burmese (Myanmar) origin, with no indications of heat treatment, with moderate clarity enhancement with oil