The beauty of gemstones is undeniable and has allured people since antiquity. There are many gemstones, but only a few are as brilliant as opal and moonstone. Although they are sometimes mistaken for one another, real opal and moonstone have a quality that is unique. They have a typical milky sheen, but you can differentiate between these jewels based on a number of factors, including their meaning, their magical healing abilities, and their outward appearance.