A very lovely cameo makes this clasp an elegant choice for any necklace. The cameo is plastic, but it is a very high quality piece and what you gain in affordability is not at all compromised in quality. The woman in the piece is pretty and smiling (which is not always the case in cameos). The cameo is set in sterling silver. It measures 27 mm wide and 33 mm ring to ring. It is available in one ring or two rings. Please specify.