Scientific Precision Grading
Guaranteed Accuracy
Independent diamond, gemstone and fine jewellery 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 jewellery. Check the authenticity of your certificate below.
Internationally Recognized
The Swiss International Diamond Institute receives diamonds, gemstones and fine jewellery from all over the world for an impartial and accurate grading report you can trust.