Antique Henry IV Double Portrait Cameo Ring

An antique 10 karat rose gold, hardstone and diamond ring.  Centering an off white hardstone oval cameo said to depict Henry IV and a young man or boy in profile flanked by two bezel set rose cut diamonds, the band with scrolling details at the shoulders and the underside of the setting with a representation of a flower.  Size approximately 7 1/2.  Gross weight approximately 3.60 grams.