As an alternative to just comparing grades among certifications, seek out regularity in the entity’s grading conclusions. GIA doesn't mine diamonds, nor does it buy, provide or trade them commercially. It doesn’t appraise diamonds and is not or else involved in diamond pricing or valuation. The AGS (American Gem Modern http://cristianjmoqr.shotblogs.com/jewelry-repair-scottsdale-can-be-fun-for-anyone-8088197