Beautiful Vermeil Gold Filigree Box Clasp.
This is a rich, vibrant gold color.
It is hollow with a cross and swirl detail on the front, and has an openwork back.
The ornamental part of this clasp measures 10mm square, though it measures about 19mm from loop to loop.
It is a very secure box clasp, great for bracelets or necklaces.
Vermeil is Silver (solid or sterling), gilded with Gold. Sometimes called Silver-gilt.