ound brilliant-cut diamonds to each shoulder in yellow gold, French control mark to the shank, size M 1/2 Accompanied by report number 79199-70 dated 11 February 2019 from GCS, London stating that the oval-shaped sapphire weighs 33.97cts (as stated by the client) and is a natural yellow sapphire with no indications of heat treatment. Origin: Sri Lanka (Ceylon)