Emerald Green Moretti Murano glass encases 24kt gold foil in an approximately 10mm round with a 1mm hole through the center. This bright transparent color of authentic Murano Glass over the 24kt gold foil gives them a rich look. As they are handmade, the actual size varies about 1mm. This Authentic Murano Glass bead works great for your Venetian Glass necklaces and matching earrings or bracelets.