This beautiful Art Deco style, 1950's engagement ring features a natural royal blue oval sapphire weighing 3.18ct in a four claw open, back setting. The sapphire is accompanied by two step baguette cut diamonds and a bullet cut diamond on each shoulder in rub-over, open back settings with an approximate combined weight of 1.80ct. The stones are perfectly set in their original platinum mount, stamped 10% IRID PLAT. UK finger size 'K'.