AGS, the abbreviation of American Gemological Society, is the most authoritative top appraisal institution focusing on diamond cutting in the world. AGS was founded in 1934. Its founder is Robert M. Shipley, who is also the founder of GIA, an American Gemological Institute, and is the most famous diamond rating agency like GIA. At the beginning of 1990, AGS devoted itself to the development of diamond grading system. The biggest difference between AGS and other appraisal systems is that it classifies the color cut clarity of diamonds from the best 0 to the worst 10, which is divided into 65438. In addition, AGS diamond grading system stipulates the most important cut of diamond 4c, which brings the development of diamond into a new milestone.
AGS Laboratory uses a scientific cutting and grading system, which is based on the proprietary optical physics and ray tracing software of American Gemological Association. This three-dimensional analysis and evaluation is the ultimate test to analyze the path of light through diamonds, and it is also the cornerstone of platinum diamond certificate. All the details of the certificate and the patented computer-generated optical performance diagram are unique to each diamond, and are also the basis of the platinum diamond certificate as the final rating report.