The Native Americav Ring does not have a silver mark but was tested with nitric acid to be solid sterling silver. It weighs 18.0 grams and is signed. The first name looks like Emett but can't make out the last name. It is dated 1974. The blue natural turquoise measures 1 1/8" x 1". The unisex ring wears to a size 8 and can be resized by your local jeweler. The silver could use a polish.