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April - Diamond
Robert M.
Shipley, who found the Gemological Institute of American (GIA) in 1931,
also founded the American
Gem Society (AGS)
in 1934. The mission of the AGS is to promote ethnics, knowledge and
consumer protection. Throughout the world there are many diamond grading
systems. Only the AGS and GIA systems qualify and quantity grades with
specific and accurate terms detailing the grading factors for a diamond.
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