THREE DIAMOND RINGS, Including a 9ct yellow gold cluster ring, set with round single-cut diamonds, maker's mark 'DS & Co.', UK hallmark, ring size M, a half-eternity band, set with princess-cut diamonds, stamped '18K', diamond weight approx. 0.30ct, ring size N, an amethyst and diamond three-stone ring, metal unmarked and untested, ring size P½, total gross weight approx. 5.8 grams (3)