Located in New York City's Diamond District, Gemological Appraisal Industry, Inc. (GAI) is an independent jewelry appraisal and gemological services company. GAI has a group of highly trained and skilled gemologists dedicated to offering quality, first-hand analysis of fine diamonds, jewelry and watches. We provide the best possible information to our clients regarding their diamond, jewelry, gem stone & watch purchases. When you visit GAI , you can expect to be treated with the respect you deserve. We explain the complete appraisal process in detail. You are present at all times and the appraisal is performed in front of you, while you watch.