Stone Oak Jewelers is an American Gem Society member. Membership in this exclusive organization is limited to independent fine jewelers who subscribe to the society’s strict guidelines regarding truth in advertising, disclosure of gemstone enhancement, accuracy of gold karatage, and accuracy in diamond grading. Registered jeweler, Certified Gemologist and Certified Gemologist Appraiser are titles awarded to those few who successfully pass rigorous courses and testing in gemology. These titleholders are required to pass yearly re-examinations to insure these skills and knowledge are kept up to date.