Art Deco Opal, Diamond and Platinum Ring, Circa 1930

An Art Deco opal, diamond and platinum ring, with a long oval, water opal, with superb play of colour, in a six claw basket setting, with two eight-cut diamonds, grain set, in each split shoulder, with chenier infill, onto a slightly tapering shank, stamped PLAT, numbered c2502, with scratched inventory mark N214 II II, circa 1930.