Edwardian natural cornflower blue sapphire (8.5mm x 6mm x 4.3mm 1.75cts) surrounded by old European transitional cut diamonds 0.24cts. Hallmarked platinum and 18ct yellow gold. Platinum claws, gold gallery and shank. One gallery shaped to accommodate a wedding band underneath. Head size 11.5mm. English circa 1900. Currently finger size L (U.S 5.75)