Sterling Silver Art Deco Style Amethyst and Onyx Filigree Necklace measures 19 inches in length. The Amethyst and onyx square gemstones measure between 1/4 and 3/8 inches in width. Filigree Amethyst and Onyx pendant portion measures approx. 1 1/2 inches H x 3/4 inches. Please see our complete selection of Fine Sterling Silver Filigree Necklaces. This Filigree Necklace is new and a quality sterling silver antique and collectible reproduction.