Book an order for Red Glass Arrowhead Wire Wrapped Pendant today at low price at Anam Agate. Red Crystals symbolize passion, energy, and life. They will motivate and keep you determined, explains Crystals & Jewelry on its site. Ruby. Ruby is the most popular colored stone. When the mineral known as corundum is of gem quality and a vivid red color, it is called "ruby." Historically mined in Asia, many rubies such as these are now being found in Africa. Pendant, in jewelry, ornament suspended from a bracelet, earring, or, especially, a necklace. Pendants are derived from the primitive practice of wearing amulets or talismans around the neck. The practice dates from the Stone Age, when pendants consisted of such objects as teeth, stones, and shells. A gemstone worn as a pendant always gives better result than a ring.