We believe consumers should feel confident about their diamond purchase, that's why our mission is to provide the most accurate and consistent gemological services with uncompromising integrity and unparalleled customer care.
Proprietary software is at the heart of GSI’s diamond grading process. This state-of-the-art software reduces the chances of human error by automating the grading process.
The same ethos behind our grading philosophy guides our global expansion efforts and informs the interactions between our offices. All our offices constantly exchange information and knowledge, allowing us to continually improve our operations and ensure the highest quality of diamond grading.