A set. Of 6 multi color crystal wine coblets, all hand cut through color to clear 24% lead crystal. These are larger sized wine goblets from poland. The art. Of making cut to clear crystal is a process where artisans start with a complete clear crystal stemware glass and coat with an. Outer colored layer and then by hand, using diamond wheels they artfully cut through the rich colored crystal exposing the clear under crystal color and creating the beautiful contrast. Of the completed art glasses. rare precious metals are used to create color in these fine crystal stem ware pieces such as gold , silver , platinum depending. On the color being created.