It was again the eastern part of the empire that starts the making of coloured glass mosaics, which began to cover windows, and the basilica domes, bringing about the first artistic stained glass windows. Starting from the 11th century the oriental glass-making school loses its supremacy to of the west.
The Italian city of Venice started playing a leading role; the island of Murano led the way in new development, starting the glass industry in Italy. The cutting methods and artistic production techniques, which had been elaborated in the Middle Ages, are more or less the same as todays. The making of lead crystal goes back to 1700 and since then until our days, has been in great demand thanks to it’s extraordinary beauty, a synonym of the wealth and nobility of a shiny material possessing such an ancient charm.