Gemological Institute Of America | All About Gemstones - GIA- giá ở kenya ,Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.Gemological Institute Of America | All About Gemstones - GIAEstablished in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.