This colorful Mid Century double strand necklace is made of faceted faux crystals. They look like glass but I think the beads are acrylic. The graduated size beads are purple, amethyst, violet blue, magenta, and bright pink. Total length is just over 17-1/4 inches including the bead chain end. The clasp is marked W. Germany. There's a little wear to the edges of the facets on some of the larger beads as shown.