What is Birthstone (বার্থষ্টোন)? A birthstone is a natural gemstone that represents a person’s month of birth. Birthstones and their vivid colors, rarity, and uniqueness make a person’s feeling special and it increases his enthusiasm and confidence. But they mean much more than that. But it should be natural. Birthstones are worn as jewelry like rings, necklaces, bracelets, etc .