The Global Gemological Research 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 manufacturers,fine jewelry 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.