This necklace features genuine seashells with an iridescent finish. Designed with a layered look, it adds a polished accent to bridal looks. This necklace features genuine seashells with an iridescent finish. Designed with a layered look, it adds a polished accent to bridal looks. Romance meets self-expression with By Anthropologie, where fluid silhouettes, sensual details, and confident design come together in pieces that invite individuality.