Assorted Statement Rings Gold & Silver Lot

This was my grandmothers I know nothing about them it’s a assorted ring lot featuring mixed gold-tone and silver-tone finishes with colorful statement stones and varied designs. multiple rings included as pictured. Good condition with visible tarnishing, scratches, and surface wear on some pieces. Mixed pre-owned rings show visible tarnishing, scratches, and surface wear on some pieces. They’re is a good chance that some of the rings are real but I am not sure how to tell