GlassOfVenice Murano Glass Button Stud Earrings - Aqua Blue Authentic Murano Glass hand-made in Venice, Italy Each button earring measures 3/8 inch in diameter The earrings are unique - no two pairs are exactly the same Certificate of Authenticity included with each pair Imported and distributed by GlassOfVenice.com, largest US-based provider of authentic Murano Glass