GRA is the gateway to the world of gemology with multiple laboratories featuring state-of-the-art gemological equipment, one of the industry leaders committed to protecting the integrity of the jewelry trade and promoting public interest through applied science, innovation, and education.
Gemological Research Association was established with a mission to provide the most accurate, consistent gemological services and education with uncompromising integrity and unparalleled customer care.
Over the years, GRA has provided superior science and service — cutting-edge research, state-of-the-art testing, client and consumer education, and comprehensive gem identification and evaluation reports.
Our streamlined and efficient work processes enable us to inspect and grade stones at the highest levels of precision. Renowned for moissanite, diamonds, and colored gemstones, we are equally trusted with the grading of pearls, fine jewelry pieces and all modern synthetics and simulants.
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