A Sri Lankan yellow sapphire single stone ring, the deep oval mixed-cut yellow sapphire claw set, mounted in yellow and white precious metal, accompanied by a GCS Sapphire Report, sapphire weight approximately 16.5 carats, ring size K. £2,000-£3,000

The Gemmological Certification Services Sapphire Report, number 79234-20, dated 26th September 2019, confirms that the sapphire is of Sri Lankan (Ceylon) origin, with no indication of heat treatment (non-heated sapphires are scarce).