All these pieces can be mixed & matched. Faux pearls except the Biwa pearls. Earrings are costume with gold toned metal. The large pearl necklace measures 17” from end to end, faux pearls are 6/8” around, knots between each stone. Gorgeous necklace. Earrings are marked Monet & measure 1 1/8” around. The 3 strand Biwa pearl necklace measures 18” from end to end, accented with round black glass beads & gold metal beads. The earrings measure 1/2” around. The long necklace hangs 17” long, no clasp, accented with real stones. The earrings measure 3/4” around. All in good clean condition. I clean all my earrings including backs.