Metal: 10K yellow gold. Total weight of the ring: 2.34 DWT (approx). Diamond size: 9mm (approx). Diamond weight: 2.75ct (approx). Diamond: Cubic Zirconia diamond, eco friendly and lab made. Gorgeous AAA clean diamonds set in prongs. Has 10K and SETA stamp on the ring. Cubic zirconia diamonds are environmentally friendly and are a perfect choice for everyday wear. Unlike natural gems extracted from the earth using large machines, explosives and unsafe working conditions, CZ Stone has been developed to be more durable with better optical characteristics than a diamond while maintaining an ethical standard in protecting our environment.