The American Gem Society (AGS) is a professional organization founded in 1934 that focuses on promoting ethical practices in the jewelry industry. It provides education and resources to jewelers, helping them enhance their skills and knowledge about gemstones and jewelry design. AGS members are committed to upholding high standards of integrity and professionalism. AGS is also known for its grading system for diamonds, which evaluates the quality of gemstones based on the Four Cs: cut, color, clarity, and carat weight. This grading system helps consumers make informed decisions when purchasing diamonds and other precious stones, ensuring they receive quality products.