one of a kind goddess power ring, glorious and makes a statement! the materials are sterling silver, fine silver bezel, 18k gold, and Lapis Lazuli. for care please do not use a polishing cloth as that can alter the patina. you can swish in warm sudsy water, rinse and dry. The surface size is 1 5/8″ x 1 1/4″. the ring size is a size 8