The Demi Signet, a smaller, delicate counterpart to J. Hannah’s signature  Signet ring. At about half the size of the original Signet, the Demi is  designed for pinky fingers, a re-envisioning of classic signet rings — it’s  the ring your grandfather wore, with a modern, feminine sensibility. The  updated size option is designed for versatility: small enough to be  integrated easily into a your regular lineup but distinct enough to make a  statement when worn alone.  Solid 14k Gold or Silver…