How do you determine lead glass decanters from glass decanters?

Lead glass decanters, also known as crystal decanters, can be distinguished from regular glass decanters by their weight and clarity. Lead glass typically contains a higher percentage of lead oxide, making it heavier and giving it a brilliant sparkle and clarity that regular glass lacks. Additionally, the cut patterns on lead glass are often more intricate and defined. Looking for a “lead crystal” label or markings can also help identify lead glass decanters.