Cuthbert Gemological Institute（CGI）established in 2000,The CGI laboratory has a long-established reputation for providing timely and accurate gemstone reports for our clients, as well as serving the industry as a whole via our extensive contributions to gemological research. Being equipped with the latest advanced technology, we ensure that our gemologists are trained and up to date on the latest identification and analysis methods. Over the years, CGI Gem Lab has accumulated superior resources, kept in mind the bottom line of the industry, and strictly implemented relevant quality inspection standards and management systems in various places.

Every certificate issued by CGI carries a unique certificate number that can be tracked online. Our customers can check their numbered certificates on-line from anywhere in the world giving the much needed comfort to a potential buyer or an owner of a gemstone to validate the authenticity of all certificates we have issued.

CGI’s mission is to protect all buyers and sellers of gemstones by setting and maintaining the standards used to evaluate gemstone quality.