The Global Gemological Resesarch Association Institute is the  standard of excellence in gemstones services worldwide,since 1993 GRA. reports have proven to be the internationally recognized passport for gemstones.For decades trade professionals,throughout the world,turn to GRA. for their expertise,consistency and reliability in gemstones identification and grading.GRA.'s school of gemstones has been attended by in-trade gemstones manufactuiers,fine ieweley artisans and the public at large,from over ninety countries throughout the world.The methodology employed by GRA.'s highly trained and experienced team of hundreds of scientific technicians and gemologists,has allowed for the evolution of the perfect formula regarding gemstone procedures, report record keeping,gem & jewelry security  and handling.GRA's state-of-the-art laboratories are located  in the heart of the gem & jewelry districts throughout the world.GRA.-The Standard of Excellence in gemstones  and Fine Jewelry Evaluation Worldwide.