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- Oct 5, 2006
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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.
How strict is their grading? Comparable with GIA/ AGS or is it more akin to EGL?
Thank you.