A vintage sapphire and diamond gem ringA vintage ring containing three cushion cut dark to mid blue sapphires . Centre stone 7x6mm (1. 3 carat), each end 6x5mm (0. 90 carats) set with four old brilliant cut white diamonds each 3mm (total 0. 40 carats) colour H i, clarity Si . (all stone sizes are approximate as in claw set settings) Head 20x8mm, depth 4. 6mm, weight 3. 9grams. Period assumed 1920 1930, Art Deco, shank stamped 18CT, and tests as 18 carat white gold. No hallmark was required