An early 20th century jade and diamond ring

An early 20th century jade and diamond ring, the jadeite jade cabochon set within graduated diamond shoulders in platinum, size M 1/2

Accompanied by report number 79230-78 dated 28 August 2019 from GCS, London stating that the cabochon-cut jade weighs 15.00cts approx and is a natural green jadeite jade with no indications of impregnation.