Circa 20thC. Each deeply carved natural amethyst bead measures a large 25mm diameter. These beads appear to be antique. Each carved natural turquoise tube bead measures approx. 22-25mm long. These beads as well appear to be old according to the correct smooth wear. The remainging beads are both silver and fine color round amethysts. The entire necklace measures 23" long with sterling silver clasp included. It's hard to date bead necklaces because antique and vintage beads are often restrung using old silver hook clasps and old beads such as the ones offered here.