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Diamond Grading

There are many diamond grading systems and certifiers out there for diamonds. The most prominent sources of diamond grading found in America would be the G.I.A. (Gemological Institue of America), and the E.G.L. (European Gemological Laboratory).

Out of the diamond grading resources, the G.I.A. is a non-profit organization available only in America and operating from only two locations. In contrast, the E.G.L., the other main diamond grading institution, is found all over the world, with a total of nine individual companies. This diamond grading source has a SI3 grading for the clarity of a diamond, which the G.I.A. does not.

Even though most jewellers rank G.I.A. superior for diamond grading, the E.G.L. certificates from Los Angeles and New York are also ranked far better in diamond grading than other E.G.L.s from around the world. Also, most of the very expensive, high quality diamonds come in G.I.A. diamond grading instead of E.G.L.