Ruby Fun Facts:Ruby is a gemstone from a variety of the mineral “corundum” that occurs naturally on earth. It is most commonly recognized for its deep red color. With a hardness of 9.0 based on the Mohs scale, rubies are harder than most natural gems and are only softer than diamonds and moissanite.Ruby is a July birthstone with associated qualities of beauty and nobility. Gem Stone: Heated Glass Filled Natural RubyShape: OvalColor: Deep RedApproximate Measurement: 9x7mmApproximate Weight: 2.35