Wine glasses and Avventurina glasses, Made in Italy These splendid Avventurina wine glasses and glasses in blown glass are entirely handmade by Italian master glassmakers. Each piece is unique, the result of skilled craftsmanship according to the ancient tradition of artistic glass. Made of colored glass and embellished with Avventurina glass granules, these glasses stand out for their extraordinary brilliance and elegance. Avventurina glass is a refined process that originated in Venice, on the island of Murano, around 1620. It is a translucent crystalline paste, within which tiny flakes or crystals of copper and metallic oxides are suspended, capable of creating luminous reflections similar to those of aventurine quartz.