SorinGohar group (sorin), led by a team of expert gemologists, offers specialized services in the identification and authentication of gemstones and minerals. We provide comprehensive gemmological reports and certifications for precious stones. Our expertise lies in distinguishing natural from synthetic gemstones and minerals from non-minerals. Additionally, we offer a range of educational programs including introductory and advanced colored gemstone courses, diamond grading courses, and hands-on gemstone cutting courses taught by experienced instructors. Upon completion of these courses, participants can obtain a vocational certificate.