Platinum, Diamond and Black Onyx Bead Sautoir Tassel Necklace with Cord The double strand black silk cord spaced by rose-cut diamond-encrusted cylinder links flanked by black onyx rings, joined by five black onyx circle links, diamond-set bar links and cylinder link of similar motif, terminating in two triangle-shaped rose-cut diamond-set links joined by 4 black onyx beads and black onyx and diamond-set circle links, with diamond-set caps, suspending a pair of staggered long twenty-three strand black onyx bead tassels with domed caps of old European-cut diamonds ap. 2.50 cts., edged by black onyx triangles, with rose-cut diamond encrusted cylinder clasp. Length 19 3/4 inches. C Estate of an Italian Philanthropic Family