International & recognized certification laboratories
We work with the following certification institutes.

ÖGEMG
DiaMina maintains close cooperation with the ÖGEMG (Austrian Gemmological Society) to provide high-quality reports and expert opinions.
We benefit from the comprehensive Austrian know-how that dates back to the 1970s, thus ensuring a precise and reliable evaluation of our gemstone, diamond and jewelry appraisals.

Gemological Institute of America

International Gemological Institute

American Lapidary and Gemological Training

German Foundation for Gemstone Research

High Council for Diamonds
