Crafted of vintage, marbled green and yellow bakelite, Mark Davis' bangle is embellished with round amethysts and peridots in 18k gold bezels. 6.60 ct amethyst, 3.64 ct peridot. 18k gold. Gemstone arrangement features a vertical row of three peridots flanked by a cluster of round amethysts, "Mark Davis"-stamped 18k gold tag at interior. 32mm band width, 7.75" interior circumference, approximately.