claw set with seven cushion-cut sapphires, between links each set with a small round-cut sapphire and two round brilliant-cut diamonds, suspending a similar link terminating in an oval cut sapphire drop, to a trace link chain, stamped 750; with accompanying report by Gemmological Certification Services, dated 23.03.2020, numbered 80258-68, stating that the sapphires are of natural Sri Lankan origin, showing no indications of heat treatment (Length: 39cm, estimated total sapphire weight: 16.69cts)