In order to avoid fraudulence and deceit when buying a diamond, it is highly recommended to have a professional examination of the diamond performed by a certificated gemological laboratory. GCI is a professional independent authority which performs professional examination on your diamonds, according to the strict standards customary in GIA and AGL. A certificate issued by the IGC gemological laboratories includes an identification diagram, as well as comprehensive information regarding your diamonds, based on accurate, precise and credible results, and supported by the most up-to-date and sophisticated equipment in the market. The diamonds are graded according to objective parameters, among them - the 4 C's (cut, color, clarity, carat weight) polish and symmetry.