Jun
22
GIA
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GIA Diamond Certificate
The most common and most well respected certificate is from the GIA (Gemological Institute of America). Generally speaking, they are the most consistent lab in the business. All other labs are always discussed in comparison to the GIA.
If you have any questions, please post them in the comments below. I will usually respond within 24 hours.
Is there a difference between GIA International lab grading vs. GIA USA lab grading, as compared to the difference between EGL USA and EGL International/Israel?
no difference