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Whats a Better Certification for a Diamond?


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There are lots of brands of labs with varying degrees of credibility. The last time I tried to make a list it had close to a hundred names! As Barry said, AGS and GIA enjoy the best reputation for consistency in the US. This doesn’t mean that others are wrong in their grading but it can be an area of concern because accurate grading can have such a profound effect on pricing. Sticking with these major labs for the first level inspection will reduce your chances of needing to return the stone after you see it or after you get it appraised, especially for stones that you are buing sight unseen.


Neil Beaty


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