This clasp is a beautiful piece of vintage glass from Western Germany. It is a turquoise blue with black and copper dust swirls. The contrast of colors is wonderful. The clasp is a nice size for a small- to medium-sized project. The centerpiece is 18 mm by 14 mm and the whole clasp measures 32 mm from ring to ring. The vintage centerpiece is set in a hand-made sterling silver box clasp.