The American Gem Society (AGS) was created with one mission in mind: to protect you, the consumer. Our members adhere to the highest standards of business practices and ethics so that you can buy with confidence from jewelers you can trust. AGS Standards not only comply with governing laws, but go beyond that, to ensure that you are buying from jewelers who have the knowledge and skill to help you make the most informed buying decision.
AGS Educational Resources
AGS Ethical Practices AGS Diamond Grading System The History of the Diamond as an Engagement Ring Precious Metals and Jewelry Education Buying Jewelry Selling Jewelry