An emerald and diamond ring and a diamond plaque ring


Comprising: a ring collet set with three square-cut emeralds, framed by round brilliant-cut diamonds, to a plain hoop, size P, stamped '750', estimated total diamond weight approximately 0.45ct; and a ring collet-set geometrically with round brilliant-cut diamonds, to a wide plain band, size N, stamped '750', British hallmarks, estimated total diamond weight approximately 0.50ct (2)