Vintage 70s-80s Gold Tone Butterfly Pendant Necklace w/ Opal Glass Stone

A vintage butterfly necklace with sculptural modernist design, dating to the 70s-80s. This retro gold tone necklace features a 1" × 1" butterfly pendant with cut-out detail, hanging on an 18" chain with secure spring ring clasp. At its center is an opal glass pendant stone -- an opaline cabochon that glows white with pink shimmer when tilted. Lightweight at 0.375 oz, this abstract butterfly jewelry piece makes a versatile statement for layering or solo wear. Smooth unmarked reverse, secure clasp, and good vintage condition.