A sapphire and diamond cluster ring
French, circa 1920.
centred by an oval cut blue sapphire of approximately 5.2 carats encircled by brilliant cut diamonds, three further diamonds set to each shoulder, mounted entirely in platinum with a finely worked gallery beneath.
Bezel 1.5 cm by 1.3 cm across
UK ring size: M
The ring is accompanied by a Gemmological Certification Services report (no. 5782-560) identifying the sapphire as of Burmese origin and showing no signs of heat treatment.