A square sapphire gemstone ring with diamonds. The RN0006-GY-11 yellow gold ring has a 6mm square sapphire gemstone and a diamond weight of 0.75 carats. Sapphire is the September birthstone, the ring is available in a wide range of sizes. Read all about this ring at http://www.jewelat.com/shop/home/381-blue-sapphire-diamond-gold-ring.html