Pikki Spiral Sea Shell Earring Studs are hand casted in Sterling Silver. Spiral Sea Shell Studs are perfect for everyday. Adding dainty detail to any outfit, dressy or casual. They make the perfect gift, stylish and the perfect size. Handmade in Denver, CO. Spiral Sea Shell protect, inspire and attract desires. Seashells have been worn for protection for over 100,000 years. Seashell jewelry is the oldest form of jewelry known; it has an ancient past and is of great importance. Inside seashells are designs of infinity; which connect us with everything.