Laurel Elliott's Pi Disc is a modern interpretation of the ancient Chinese form of a circle within a circle, an enduring symbol of nobility, purity, constancy and eternity. The circle having no end is itself a symbol of infinity. Its classic shape looks beautiful when worn, moving easily from day to night. The chain can be knotted on the disc or simply slipped though the open circle providing an additional 2" in length. It also can be used without a chain as a touchstone or keepsake for the pocket, desk or nightstand.