This Amethyst (Purple) and Bluino (blue) Murano Glass bead is part of our Sole line. The beautiful rich colors over 24kt gold foil make this a stunning Venetian bead. The size is approximately 20mm and the bead is slightly puffy with a 1mm hole that runs through the center. By design, the gold foil is partially exterior. Over time this gold may rub off or be affected by lotions, body oils, etc. This is not a defect of the bead. Think of this bead when designing your next necklace.