Green Amethyst Ring – Cove Signature Ring I in 14k Gold | Ready to ShipCove Signature Ring I Green Amethyst (Parasolite) Ring in 14k Gold The Cove Signature Ring I in Green Amethyst features a luminous cushion cut green amethyst gemstone (also known as Parasolite) set in solid 14k gold. With its soft mint green glow and refined cushion cut, this ring offers a fresh and modern take on classic gemstone jewelry. Green amethyst is a heat treated variety of quartz admired for its delicate color, ranging from pale mint green