Beautiful deep colors Moretti glass over 24kt gold foil approximately 18mm by 17mm with a 1mm hole running vertically through this bead to make this a dramatic Venetian Bead square. Authentic Murano Glass. Size is approximately 18mm and slightly round edges, each one slightly different. As they are handmade the corners are slighty rounded and the sides. Note that the gold foil can be partially exterior and any exterior gold is subject to wear and tear. The colors in this one are Topaz and Amethyst (purple)Murano Glass.