The round brilliant shape maximizes sparkle through precisely calculated facet patterns specifically designed to optimize light return regardless of viewing angle or movement. Its radially symmetrical design ensures consistent performance in necklace settings where diamonds naturally shift during wear, maintaining visual brilliance under varied lighting conditions. The shape’s superior light performance creates unmistakable fire and scintillation that elevates the overall impression of luxury in both classic and contemporary necklace designs. Additionally, round brilliants set in expertly crafted necklaces create a seamless river of light that flows naturally with the wearer’s movements, enhancing the stone’s inherent optical properties.