The GIA is the Gemological Institute of America. It is the world’s foremost authority in gemmology. It was established in 1931 as the non-profit, educational resource for the gem and jewellery industry.
The Institute’s aim is to provide the industry and the public with an independent, objective opinion regarding the quality of the diamond. Each stone submitted for certification is carefully checked by numerous professionals to ensure maximum accuracy and grading consistency.
GIA developed the first internationally accepted Diamond Grading System with unbiased opinions regarding the quality of polished diamonds by applying uniform criteria to their grading and the revolutionary 4Cs of diamond value (carat, colour, clarity, and cut). It also introduced the foremost diamond report, setting the standard for diamond quality documentation around the world.
Nina's staff have received training directly from the GIA in diamond and stone selection and design.