Deep rose foil clasp

I am sorry to report, gentle reader, that I have no information about the centerpiece of this clasp. I bought it because I liked it. It is a beautiful piece of glass. It has a foil base, so it has that great sparkly thing going on. The centerpiece glows predominately pink, with a little hint of violet. It has contrasting swaths of black that cut across horizontally. It is a totally satisfactory piece of glass. The centerpiece is 18 mm in diameter. The clasp measures 32 mm from ring to ring.