I love these! For the minimalist chic, they have a subtle irregular shape that make them truly unique. 925 Sterling Silver, stamped on the earring backs. 18k gold plated. Karat gold plating is a wonderful option to get beautiful gold pieces at an affordable price. I only use top rated jewelry manufacturers that have been in business for years and have the repeat customers to prove it. Gold Karat plating can last for years when properly plated