Most of the blue and red enamel on this ring is plique a jour. The blue leaves and the white dots near the pearl are opaque enamel. The filigree setting is made of some type of brass like metal. There are tiny white dots on the sides. In the center is a genuine 4mm white pearl. The top of the ring measures 7/8" in diameter. The size is a 7. Very nice condition with no damage to the enamel.