Unusual off-square platinum Art Deco diamond ring with centre square old cushion cut diamond, rubbed set, estimated weight 0.33ct, colour H, clarity SI1, surrounded by a cut out pattern, with 22 single cut diamonds set around the outside in a square shape, estimated total diamond weight 0.35ct, colour H, clarity VS-SI, on a half round band.   Currently size L1/2 and can be safely sized by our expert jewellers. This ring is unique and once sold cannot be replaced.