From the vera wang love collection, this stunning cushion-cut lab-grown diamond three-stone engagement ring makes a bold statement. 14k white gold 4 ct. Cushion-cut lab-grown diamond center stone trilliant-cut lab-grown diamond collars two blue natural sapphires are the signature of the collection and a symbol of faithfulness and everlasting love certified lab-grown diamonds; f color/vs2 clarity with certification card 4-1/2 cts. T. W. Of lab-grown diamonds designed for the diamond storeâ®