Etnia Barcelona: Color, Natural Acetate and Art colorful glasses · Etnia Barcelona · luxury eyewear Alpharetta · mineral glass sunglasses · natural acetate · Oct 14, 2026 Etnia Barcelona launched in 2001 with a simple idea: glasses don't have to be brown or black. Here is how the Barcelona brand uses natural acetate, mineral lenses and art to make some of the most colorful frames we carry.