North American Gemological Laboratory is an independent gemological laboratory composed of a small team of passionate GIA trained Graduate Gemologists. Our goal is to provide unbiased information based on gemological testing and valuations based on market research. We are unique in that we do not buy or sell jewelry. We feel it to be a conflict of interest to our clients.


Our staff of Gradate Gemologists have all gained their certification from the Gemological Institute of America (GIA). In fact, our current staff were all once Staff Gemologist at the world renowned GIA Gem Trade Laboratory in Carlsbad, CA. Their diamond grading and gem identification skills are top notch.


Our professional staff is continuously pursuing additional education. Education and experience; paired with the latest in gemological testing equipment, enables our laboratory to provide you with accurate results.


Our laboratory proudly serves retail consumers, retail jewelry stores, manufacturers, jewelers, and gemstone collectors from around the globe.


If you have any  questions, please call our office or send us an email. We’d love to hear from you.