Aquamarine foil clasp

The silver foil in this vintage cabochon picks up the silver edge and is a stunning contrast to the deep aquamarine glass. Probably Italian (but I am not positive), this is one of a series of pieces in various colors that I unearthed. The centerpiece is 18 mm round and the clasp is 32 mm from ring to ring. The centerpiece is set in a hand-made sterling silver box clasp. Available with one ring or two rings, please specify.