Hearts and Arrows diamonds (H&A) are the precision-cut variations of traditional round brilliant cut diamonds. They are cut to ideal diamond proportions with excellent symmetry, polish and a specific facet pattern that displays eight symmetrical arrows in the face-up position of the stone and eight symmetrical hearts in the face-down position.
It is important to mention that ideal/excellent cut diamonds do not display true hearts and arrows because this pattern is achieved by polishing each facet to exact angles and proportions.