Are the cameos carved shell? Often the silver can be .800. I have found this often. A lot of work went into this ring. Bezel setting is time consuming and often difficult around more fragile materials. This is a very, very nice ring. Well worth what you are asking if the cameos are genuine. I cannot imagine all the work that went into this ring being faux cameos. When many silver rings are hand made as in the case of American Indians, you will find the silver is .800
I think they are carved she'll not resin or plastic. They are three different colors. Brown background, black background, and pinkish. It is a very nice ring.