Sterling 925 stone rings EUC 12$ each

lovely rings two are size 6 and 2 size 7, approximately. stamped 925 but I think they may be plated. coral, malachite, lavendarite or amethyst and possibly moss agate. please see pictures for details and measurements and condition priced low because they may be plated and wouldn't be fair to sell for price of solid sterling. any questions please ask each ring is 12$ each firm. you can bundle for savings just let me know