Vintage faceted glass bead 18" necklace blue and green box clasp wire strung

Vintage faceted glass(?) bead 18" necklace with box clasp. Clasp (1.2 x 1cm) has a scalloped metal gold colored setting holding a lt blue bead with 4 prongs. The colors are beautiful with two blues and one green. The beads appear to have other colors when turned, I suspect they may be aurora borealis. In between colored beads are a very small gold colored bead. Clasp and necklace are not attracted to a magnet. Appears to be strung on wire. Lightweight. Pre-owned in very good condition for age. All items are sold as is, so review pictures and ask pertinent questions. Thank you for shopping @AntaresbyTess ⭐️