We believe that the highest form of leadership comes through service that assures you precise and risk-free operation. Taking this into consideration and with accurate grading according to GIA and AGL standards, GCI offers comprehensive grading reports with precise information on your precise stones. As an international organization serving the diamond, gemstones, and jewelry industry, we offer you various gemological services, among which: diamond grading services as well as diamonds and gemstones identification and consultation service.