Phoenix Ideal_Rock Premium Joined Oct 5, 2006 Messages 9,975 May 14, 2011 #1 I'm considering a secondhand ring. The diamond doesn't come with a GIA report, but one from Gem Tech Lab (which I understand is based in Switzerland). How strict is their grading? Comparable with GIA/ AGS or is it more akin to EGL? Thank you.
I'm considering a secondhand ring. The diamond doesn't come with a GIA report, but one from Gem Tech Lab (which I understand is based in Switzerland). How strict is their grading? Comparable with GIA/ AGS or is it more akin to EGL? Thank you.
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