Vintage Amethyst Lava Glass Choker Necklace

Beautiful unique Vintage Molded Art lava Glass Rhinestone Necklace Choker. Schiaparelli?? Unsigned Schreiner? Juliana? Unsigned. Large amethyst purple open back glass stones with iridescent art glass molded flower stones. Dog tooth prongs. There is color loss on the back of metal from age but still very pretty and unusual necklace. There is one rhinestone missing near the clasp. The 1930's Schiaparelli pieces were not signed, and are very difficult to find, but by the late 1940's most pieces were being signed. Measure carefully. A miniature mannequin is used for photos.