Organic gemstones are natural materials formed from living organisms. Unlike traditional gemstones, which are minerals, organic gemstones originate from biological processes. Examples include amber, formed from tree resin, and pearl, created by mollusks as a defense mechanism against irritants. These gemstones often have unique colors and textures due to their organic origins. They are valued not only for their beauty but also for their historical and cultural significance. Coral and jet are other examples of organic gemstones, each with distinct properties and uses in jewelry and decoration.