ANTIQUE MARQUISE RING In yellow gold, set with three round old-cut diamonds in a surround of small diamonds on platinum. Hallmarked by the master. An old cut diamond, platinum and 18k gold ring. RC : Hallmark: E or B (?), H (?), a wheel, D, within a horizontal lozenge. TDD: 60; US: 9 1/2 (subject to change). Gross weight: 9.8 g (18k - 750 and Pt - 950).