GIA (Gemological Institute of America) - The Gemological Institute of America, founded in 1931, is a non-profit organization that trains and evaluates diamonds, colored stones, pearls and jewelry, leading in the world.
GIA built a diamond and gemstone inspection system based on 4C standards including 4 factors that determine the quality and value of a diamond: weight. color, purity, cut. GIA's 4C standard testing is the most fair, rigorous, famous and popular testing in the world diamond and gemstone market.
The nameplate displaying products with GIA inspection helps customers easily identify which products are inspected by GIA.
