A set. Of 6 multi color crystal champagne fluted stemware glasses, all hand cut through the color to expose the clear 24% lead crystal. These are all hand made and mouth blown in 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.