Ceylon Sapphire & Yellow Diamond Ring, by Hancocks of London

Featuring a unique hexagonal cut sapphire (6.52 carats) with two trapezoid cut yellow diamonds. Set in 18 karat yellow gold. 

Stamp: Hancocks, maker's mark CFH & Co, London hallmark.

Sapphire has an AGL Report stating that the origin is Ceylon (Sri Lanka), and the stone is unheated - original copy available upon request.