925 sterling silver statement necklace w smoky and rutilated quartz Paula shells

Handmade vintage statement necklace with many natural stones. Smoky and rutilated quartz, Paula (abalone) shells, natural dark and peacock pearls, like black Tahitian, but likely freshwater. Stamped 925 on the clasp. In excellent condition. 14” around the neck 9.5” drop length 3” extension. The shortest and longest positions are shown in the last two pictures. Bohemian, boho, luxury, handmade, collectible