Aqua mirror clasp

I fell in love with these vintage German centerpieces when I saw them at the Bead and Button Show in Milwaukee. The centerpiece is a faceted octagon with a deep aqua center bordered by a clear mirror which is then bordered by the same aqua blue as the center. It makes a very sharp, clean look. The centerpiece is 14mm by 18mm and the clasp is 32mm from ring to ring. The centerpiece is set in a handmade sterling silver box clasp.