Why are gems certified?
Gems are certified to verify the authenticity of the stone. A gem certificate will have a photograph of the stone and include information such as the weight, cut, origin, measurements, enhancements, and any other relative features noted during the certifying inspection. The certifying agencies employ trained gemologists who use a variety of scientific methods and test equipment to thoroughly examine the gems. Use the following links to view examples of an AGTA gem certificate or a GIA Certificate done in Colombia.