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agi - Industry Leaders


agi was the first UK laboratory to introduce a handy credit card sized certificate, which is now the industry norm for basic 4C's grading. In addition we are at the forefront of the industry in protecting the consumer.

We are uniquely positioned to provide you with a superior service and a quality report which will help achieve more sales and boost customer confidence by providing you with an expert, unbiased third-party report to verify the quality of the diamond you are selling. With an agi diamond grading report you are not only receiving a diamond document from a premier diamond grading laboratory, but you are assured that you are selling an appropriately valued diamond graded with the gemmological industry's highest standards of evaluating the 4 C's.