I have used this clasp quite successfully with garnet. It is just perfect. The centerpiece is a vintage piece from West Germany. The surface is smooth with a cracked ice pattern beneath. The pattern makes a nice play of light and dark. It is especially effective with faceted garnet, but feel free to use it with other projects as well. The centerpiece is 14 mm by 18 mm. The clasp is 30 mm from ring to ring. The centerpiece is set in a handmade sterling silver box clasp.