Authentic Murano Glass bead in the Pastello Aventurina Style, where we begin with a base of opaque Murano Glass and then sprinkle splashes of Avventurina around. The bead is then completely encased in clear Murano Glass giving it depth and the Aventurina gives it sparkle. It's a economical line but can be dressed up. This bead is a 16mm round with a center hole nominally 1mm in diameter. The color in this one is a base of Opaque Gray(Grigio) Murano Glass.