This is a set of three 18ct yellow gold-plated stacking rings. Ring one has a faceted amethyst top, ring two has a small green onyx top and a hammered-effect band and ring three has a larger faceted labradorite top with a hammered-effect band. 18ct yellow gold-plated vermeil on sterling silver, amethyst, green onyx, labradorite. Size and fit: Size M 52.5mm shown here. Ring 1 length 0.1in/0.5cm, width 0.3in/1cm. Ring 2 length 0.3in/1cm, width 0.3in/1cm. Ring 3 length 0.5in/1.5cm, width 0.3in/1cm.