Crystalline Gemological Institute is a private limited company “CGI”, was founded to serve the jewelry industry by providing diamond and color stone education, diamond and gem stone reports using international grading standards developed in the mid-1950s, CGI has been dedicated to ensuring the public trust in gems and jewelry by upholding the highest standards of integrity, science, and professionalism. Crystalline Gemological Institute is one of the top independent Diamond, Gemstone and Jewelry education, certification and appraisal services in India. Renowned for its quality, CGI has an unsurpassed reputation for reliability, integrity and fast service
No.40, Hanumanrayan Kovil Street,
Edapalayam,(ParkTown),
Chennai-600003.
( Behind Konica Jewellery, NSC Bose Road),
Phone : 044-25332150/42073234.
No 10, 1st Cross,
Commercial Street,
Bengaluru - 560001,
elephone : 080-25529138,
Mobile : +91-9894903910,