The July birth stones are rubies, the vibrant scarlet gemstones that blaze with the heat of the high summer and command your attention when placed into one of these July birth stone eternity rings. The radiant gems like those in this July band were quite treasured in ancient times and the Middle Ages, because people then believed they could protect the wearer from harm, & darkened in color when danger approached. The July birthstone is formed from the same minerals as the sapphire, and both are often found jointly in the same mineral deposits.