Each piece is hand carved from the quahog shell using a rotary tool with a diamond dip and then put into a rock tumbler for three weeks. The purple is the natural color of the quahog shell. The quahog shells are found on the beaches of Cape Cod. Each half of the quahog shell is a mirror image of itself which is used for earrings. Every pendant is unique because no two shells have the same markings on them.