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Understanding the AGS Light Performance Diamond Quality Document

The Light Performance Diamond Quality Document (DQD) available from the American Gem Society Laboratory (AGSL) is the most complete diamond grading report available at this time.  This tutorial describes the various sections of the DQD and provides detailed insight which will help you make a better diamond buying decision.  The Light Performance DQD pictured above is for a 1.380 carat, F-color, VS-1 clarity, Hearts and Arrows Diamond from the Brian Gavin Signature Collection, it’s got me drooling!

About the Author Todd Gray

Todd Gray is a professional diamond buyer with 30+ years of trade experience. He loves to teach people how to buy diamonds that exhibit incredible light performance! In addition to writing for Nice Ice, Todd "ghost writes" blogs and educational content for other diamond sites. When Todd isn't chained to a desk, or consulting for the trade, he enjoys Freediving! (that's like scuba diving, but without air tanks)

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