A square blue sapphire gemstone ring with diamonds. The RN0006-SV-11 sterling silver ring has a 6mm square blue sapphire gemstone and a diamond weight of 0.75 carats. Blue 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/383-sapphire-diamond-silver-ring.html