Cut grading is a system used to evaluate the quality of a diamond's cut. It assesses how well a diamond's facets interact with light, affecting its brilliance and sparkle. The grading typically ranges from Excellent to Poor, with higher grades indicating better craftsmanship and light performance. The cut grading process considers several factors, including the diamond's proportions, symmetry, and polish. A well-cut diamond, such as those graded by the Gemological Institute of America (GIA), will reflect light beautifully, enhancing its overall appearance and value. Proper cut grading helps consumers make informed decisions when purchasing diamonds.