This is a great Retro Sterling Silver & Amythest & Peridot & Blue Topaz Ring Size 9, measuring approx. 7/8" X 3/8" at its widest, and is marked 925 which is STERLING SILVER. This Ring is a size 9. Sorry, I do not know if the stones are natural or synthetic! Very nice Ring. Launched from my store - Powered by Highwire.com