Venini Vase Narciso Crystal/Black or Crystal/Milk in Murano Glass 507.00 designed by Diego Chilò The two-tone vase Narciso, designed by Diego Chilò in 2008, is made of blown glass and hand-worked with the incalmo technique. This technique is very complex and consists of hot-pairing two blown shapes along their circumference, so as to obtain differentiated areas in the same object, usually of a different color.