The July birth stones a rubies, the vibrant red jewels that blaze with the heat of summer & command your attention when set into our July band eternity rings. The radiant July birthstone was quite prized in ancient times & the Middle Ages, because people at the time thought rubies protected the wearer from harm, and darkened in colour when danger approached. The ruby birthstone forms from the same minerals as the sapphire, and both are often found together in the same mineral deposits.