Cut diamonds are gemstones that have been shaped and polished to enhance their brilliance and sparkle. The cutting process involves precise techniques to create facets, which are flat surfaces that reflect light. The quality of the cut significantly affects the diamond's overall appearance and value. The most common cut for diamonds is the round brilliant cut, known for its ability to maximize light reflection. Other popular cuts include princess, emerald, and oval. Each cut has its unique characteristics, catering to different preferences and styles, while maintaining the diamond's inherent beauty.