Hand crafted from sterling silver and Nautilus shell. These beautiful earrings are designed by makers & Providers in Australia and ethically made by skilled artisans in Mexico. Approximate width (at widest point): 20mm Approximate length (from top of hook to bottom of earrings): 44mm As a nautilus grows, it gains more living space by building new chambers connected to the old ones; adult shells have 30 chambers. The nautilus is the only cephalopod with an external shell. Much like zebras, nautiluses can be individually identified based on their striped shell patterns.