Are you a July baby? Then you are the proud recipient of having the Majestic Ruby as your birthstone. One of the most coveted, and expensive gemstones in the world, and only one of 4 gemstones considered a Precious Gemstone. Watch this short video, and learn all about your birth stone. My son's birthstone is a ruby, as is my husband. My daughter is an emerald. I am the only one that has a reasonably affordable birthstone with a peridot.