Âme Trio 18K yellow gold double band ring features approximately 0.78ct. tw. princess, square emerald and trillion lab-grown diamonds. Every piece of jewelry is unique, therefore weights and measurements may slightly vary. The ring size is 6.5 (53.1). The total weight is 12.38g. Lab-grown diamonds have the same chemical, physical and optical characteristics as mined diamonds, but are grown above-ground rather than under. Learn more about lab-grown diamonds here.