• Established in 1931, GIA is an independent nonprofit that protects the gem and jewelry buying public through research, education and laboratory services.
  • The Wayback Machine - https://web.archive.org/web/20200730043808/http://gia.edu.ru/ru/.
  • Gia.edu.ru receives approximately 44 493 daily, 1 334 790 monthly and more than 16 017 480 yearly unique visitors. ... gia.edu.ru — all time overall report.