An Art Deco colour-change sapphire and diamond brooch, certification: Sri Lanka, no heat

An Art Deco colour-change sapphire and diamond brooch, the oval-shaped sapphire weighs approximately 8.00cts, the openwork brooch of geometric design, set with graduated old circular-cut diamonds in platinum and white gold, 7cm wide

Accompanied by report number 80275-55 dated 15 September 2020 from GCS stating that the oval-shaped sapphire weighs approximately 8.00cts, and is a natural colour-change sapphire, exhibiting blue colour in daylight and purple colour in incandescent light, with no indications of heat treatment. Origin: Sri Lanka (Ceylon)