A Belle Epoque sapphire and diamond pendant necklace

A Belle Epoque sapphire and diamond pendant necklace, of pierced foliate design millegrain-set with graduated old circular-cut diamonds centring on a circular-cut sapphire in platinum and gold, on a fine-link silver neck chain, pendant length 6cm, chain length 48cm

Accompanied by report number CDC2304531 dated 27th April 2023 from C. Dunaigre stating that the natural sapphire weighing 4.68cts with Royal Blue colour, shows no indications of heating, origin Sri Lanka (Ceylon)