Shop Three Stone Lab Grown Diamond Rings, a classic style featuring a center diamond with two side stones for extra sparkle and meaning. Often representing the past, present, and future, this design is a popular choice for engagements and anniversaries. Our collection features three stone lab grown diamond rings with round, oval, cushion, emerald, radiant, princess, pear, marquise, Asscher, heart, and elongated cushion diamonds. Every ring is carefully crafted in your choice of 10K, 14K, or 18K gold and is available in a range of carat sizes to suit different budgets. Explore our three stone ring collection and find your perfect ring.