Our Passion for crystal is behind the masterpiece we call Allegri. The history of crystal dates back to the beginning of time. At, Allegri, we pay homage to crystal by offering an array of classic, timeless designs, along with modern styles that transcend time. Our designs are dressed in our exclusive Firenze Crystal. Firenze Crystal is sourced throughout the world to meet our exacting standards for machine cut, machine polished jewels with a coating that creates an amazing high degree of shine and refraction.