Guaranteed Accuracy
Independent diamond, gemstone and fine jewelry analysis with world-class instruments by expert gemologists.
Detailed Gemological Reports
Complete peace of mind and certainty about every aspect of your precious stones and fine jewelry. Check the authenticity of your certificate below.
Internationally Recognized
The Technological Institute of Gemology receives diamonds, gemstones and fine jewelry from all over the world for an impartial and accurate grading report you can trust.