Ideal cut is the highest grade of diamond cut. This kind of cut can perfectly reflect the light of the diamond, making the diamond look more sparkling. The ideal cut requires precise calculation and cutting by a professional diamond cutter to ensure that the diamond has the best light reflection effect. In Chow Tai Fook's In the diamond cut rating, the IP grade indicates that the diamond's cut is closest to perfect, and can show the best optical effect and appearance of the diamond.