Lime snowcone clasp

With its white cap and green surround, this clasp reminded me of a snowcone. The glass is faceted. The green is bright around the edge but fades as it moves to the top, which is white. The centerpiece is 28 mm in circumference. The clasp is 42 mm from ring to ring. The centerpiece is set in a hand-made sterling silver box clasp. One ring or three rings, please specify.