The Gübelin Gem Lab operates on the principle that scientific integrity and independence are the foundation of trust. Every analysis and report is conducted impartially, free from commercial influence, and guided by verifiable data. When testing an item, our experts are unaware of the identity of the client, to avoid possible bias, and stay focused purely on the stone. This philosophy extends to all aspects of the Lab’s work, from research and quality control to staff training and technological investment. 

By uniting technological precision with ethics, the Gübelin Gem Lab ensures that its services contribute to a transparent and sustainable gemstone industry.