This eye-catching gemstone ring from the EFFY™ Collection is a dazzling standout piece. Sterling silver 12.0mm cushion-cut pink amethyst 6.0mm trillion-cut white topaz flank the centrepiece A family-owned New York-based business, EFFY™ has built a reputation for unrivalled quality and flawless craftsmanship, with a sense of individuality captured in every design.