This clasp features what I can only describe as a micro-faceted cat's eye vintage Swarovski centerpiece. The crystal has scores of tiny flat planes around it. It is quite high — 13 mm — and glows green and topaz when twirled in the light. Because of the Swarovski commitment to consistency and quality, this clasp would work well with any of the green or topaz crystals Swarovski currently produces. The clarity and depth of this crystal is truly awesome. There is a little glow of dusty rose in the clasp, and if you wanted something to contrast yet match a rose Swarovski necklace this clasp would work. The centerpiece is 17 mm in diameter and is set in a sterling silver box clasp. The whole clasp is 28 mm from ring to ring.