Vintage Graduating Single Strand Clear Faceted Glass Bead Necklace 16" Long

Very nice clear vintage necklace consisting of clear glass beads in a single strand that graduate in size from 6mm to 14mm. Each bead is sandwiched between colorless glass space beads. Approximately 15-3/4" long. String is loose on the right of the spring ring clasp. I don't know if that can be repaired without having to restring it or not. Unmarked.