James Allen Diamonds, Inc. designs, manufactures, and sells diamonds and fine jewelry. It offers designer, gemstone, and diamond pendants; pearls and diamond studs; designer and diamond earrings; engagement, wedding, and anniversary rings; a collection of gemstones, such as blue, pink, and yellow sapphires, as well as red rubies and green emeralds; and loose diamonds, which include hearts and arrows diamonds, and fancy color diamonds. The company also sells its products through its online store. It serves customers in the United States, Canada, and internationally.