Goldtone Victorian Style Ring - Green CZ Make a memorable look with Margot's Goldtone Victorian Style Ring - Simulated Green Onyx. Features goldtone, brass based metal with a 9 carat round cut center simulated green onyx stone. The ring is composed of simulated gemstone. As such, it will have natural inclusions . Ring is handmade in India with excellent attention to detail payed, which can be seen in the etching and hammering techniques used on the metal.