Swarovski eyeball clasp

I know that is a gross name, but that is what it looks like and I already used vitrail medium for another clasp's name. So, this is a vitrail medium medallion with a clear surround. It looks like an eyeball. The eye of the clasp is pink if you look straight down on it, but it is green blue from the side. The centerpiece is 18 mm in circumference. The clasp is 30 mm from ring to ring. Available with one ring or two rings, please specify.