Cristal D'Arques Longchamp Diamax - Set of 10. Whiskey Glass. Collection of America's Favorite Crystals. Longchamps has graced more tables than any other crystal pattern, and has been featured in movies, television shows, and print media over and over again since its introduction 40 years ago. Longchamp is made from 24% pure lead crystal exclusive to Cristal DArques, Paris, in their own facilities in France. Diamax ultra-transparent bright glass. Designed and manufactured in France, exclusively Deep diamond cuts refract light. Large selection of sizes and accessories Durable design for years of use and enjoyment