Sapphires, the September birthstones, are known for their beautiful deep blue. These sapphire birthstone eternity wedding rings feature this stunning naturally blue gemstone set alongside classic white diamonds, finished in one of our breathtaking platinum eternity settings. The opulent September birthstone sapphire is the best for memorable luxury, & this gem has been connected with trust & love, as well as foresight. It was thought that the more intense the sparkle of the sapphire birth stone, the more trustworthy and honest the September birth stones wearer.