Vintage Venetian Murano Glass 'Sommerso' Foil Bead Necklace

This is a vibrant vintage costume necklace featuring large, hand-blown Venetian-style glass beads in a variety of jewel tones, including ruby red, amethyst purple, amber yellow, turquoise blue, and jet black. Each bead displays a twisted 'nugget' or bi-cone shape with a 'sommerso' (submerged) technique, where layers of colored glass wrap around an internal core often infused with gold-tone foil or 'aventurine' copper flecks, visible as shimmering streaks throughout the beads. The beads are separated by small gold-tone spacer beads and are strung on a fine metal chain. Notable features include the artisanal irregularity of the bead shapes, suggesting hand-lampworked production common in mid-20th-century Murano glass exports (circa 1950s-1970s). The necklace is finished with a simple gold-tone spring ring clasp. Condition appears good with a natural aged patina on the metal findings and no immediately visible chips to the glass. The craftsmanship reflects typical high-quality Italian export jewelry of the period, designed for bold, eclectic fashion statements.