About GID

GID – the gemological lab which provides the highest level of professional gemological services and grading for the diamond, colored gemstone and jewelry trade.

Our labs are staffed by highly skilled and experienced professionals who provide precise inspection skills using the most advanced equipments available. This includes the detection of natural diamonds, lab-grown stones and treated diamonds.

It is the result of continuous research, support and synergy with professionals and consumers alike. Around the world, GID certificates and appraisals bring confidence when buying or selling diamonds, gemstones and jewellery.