Vintage Aurora Borealis Crystal Bead Necklace

This is a vintage single-strand necklace composed of faceted crystal beads treated with an Aurora Borealis (AB) coating. The beads are graduated in size and feature a double-cone or bicone faceting that creates a brilliant iridescent shimmer, reflecting a spectrum of colors including blue, pink, and yellow. The necklace utilizes a vintage screw-type barrel clasp made of a patinated base metal, which is a common characteristic of mid-20th-century costume jewelry ranging from the 1950s to the 1960s. Each bead is individually hand-knotted or strung on a durable cord, indicating a higher level of craftsmanship than mass-produced modern equivalents. The overall condition appears good, though there is visible tarnish on the metal clasp and potential minor flea bites or surface wear on individual crystal facets consistent with age. A white string tag is attached, suggesting it is a secondary market item. The length appears to be a standard princess or matinee length, and the beads exhibit the high-quality optical clarity associated with European lead crystal manufacture from period centers such as Austria or Czechoslovakia.