Lab-Grown Heart Diamonds

Lab-grown heart-shaped diamonds make the shape's practical minimum carat weight — around 0.70ct–1.00ct, below which the heart silhouette loses definition — far easier to achieve. In natural stones, hitting that threshold at appropriate clarity and colour grades imposes a meaningful cost; lab-grown pricing reduces that barrier considerably. The shape's defining feature is bilateral symmetry: equal lobes, a clean cleft, and a well-defined point are the characteristics to evaluate first.