What is your birthshell? Congress Jewelers makes a Birthshell for every birthmonth and accompany it with your birthstone. We take pride in bringing the magic of Sanibel to wearable jewelry. All hand-made and hand-finished on Sanibel Island, Congress Jewelers offers each of our birthshells in a variety of gold and silver jewelry including pendants, earrings, rings, and charms. Explore our Birthshell^™ Collection and find your shell to take a piece of Sanibel wherever you go.