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Anyone heard of Gem Tech Lab?

Phoenix

Ideal_Rock
Premium
Joined
Oct 5, 2006
Messages
9,331
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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