Coral is an organic gemstone. It is are created from living matter like plants. Coral is not lustrous in its natural state, but when polished and properly waxed, it displays a very smooth, glossy sheen. The most common coral color is white, but for jewelry, the variety used is typically pink, pink-red or red. These varieties are known as precious coral or red coral. Used extensively in ancient times, Coral has been found in Egyptian tombs and prehistoric European burial sites.