- Aug 28, 2007
This has been my experience as well with all of the AGS stones that I have seen in person. They always appear to me to be about one color grade below comparable GIA graded stones. I can usually see color in diamonds pretty easily but I don’t mind the warmth. I would take a lower color if it means a larger and better cut stone—nonetheless I think that it’s something to keep in mind when comparison shoppingI hate to say this out loud on this forum, but based on what I’ve seen with my own eyes and been told by basically every jeweler I’ve encountered (and not “mall jewelers”, but reputable local jewelers and gemologist, some of which sell both GIA and AGS diamonds and several who admittedly actually prefer AGS graded stones for cut grading), AGS is softer on color grading vs. GIA (though some have said the AGS has gotten “better” in that regard). Based on my experience, if I were ever to go with an AGS diamond I wouldn’t go below an F for that reason, whereas with GIA I’d go down to probably an H or I. *waiting for the stoning to begin* Don’t get me wrong, I’ve seen beautiful pics of AGS diamonds in “lower” colors that look fantastic, but IRL in my experience and based on my discussions with jewelers and gemologists, AGS tends to be softer on color than GIA.