Faceted glass
A faceted glass or granyonyi stakan (Russian: гранёный стакан, lit. 'faceted glass') (Ukrainian: гранчак, romanized: hranchak, derived from грань, meaning 'facet') is a type of drinkware made from especially hard and thick glass and having a faceted form. It is a very widespread form of drinking glass in Russia and the former Soviet Union.