Edwardian Sapphire and Diamond Panel Ring

Millegrain collet-set with a cushion-shaped sapphire weighing approx. 4.40cts within a lozenge-shaped old mine and single-cut diamond and calibré-cut sapphire surround, mounted in platinum, French import marks

With GCS certificate nr. 78136-40 dated 3rd January 2018 stating the sapphire is Ceylon origin, no indications of heating 

Size Q

Reference. C2980