Marcus & Co. natural saltwater pearl necklace. Composed of three hundred and forty-eight natural saltwater pearls, further set with a marquise shape old cut diamond in an open back rubover with an approximate weight of 0.60 carats, to an elegant graduating double row necklace, terminating in a secure push clasp and safety catch, approximately 19" in length. Clasp tested platinum, numbered '47 54 06, signed 'MARCUS' for Marcus & Co., circa 1915, accompanied by Gemmological Certification Services report #5782-2634.
