An impressive George III ruby and diamond cluster ring, the cushion-shaped ruby weighing 3.12cts,

An impressive George III ruby and diamond cluster ring, the cushion-shaped ruby weighing 3.12cts, with surrounds of old cushion-shaped diamonds and diamond shoulders in silver and gold, the closed-back setting later opened, size L

Accompanied by report number 1134061 from AGL dated 22nd August 2023 stating that the ruby shows no evidence of heat treatment, origin: Burma