Round cuts tend to be the most balanced, versatile, and popular shapes. Most round cut colored gemstones are faceted to enhance sparkle and the play of light. Round diamonds in particular are often brilliant‐cut, which enhances the diamond's angles and maximizes sparkle and brilliance. A round diamond will give you the most sparkle out of all of the diamond shapes. 14K White Gold 10.1mm circle measurement Diamond 0.15Ct 18" Long