Preciosa is the luxury brand of bijouterie and crystal glassworks makers out of Czech Republic who have been producing high quality products since 1548. Preciosa manufactures crystal glass in their own glass works and same as Devotion Dresses represents the finest of European design and quality. Preciosa crystal contains approximately 30% lead to maximize refraction and since 2013 Preciosa also produces a lead-free crystal (lead content < 0.009%).