A natural product. It forms in the shell of marine mollusks. Pearls vary in quality and appearance because they are produced by different species of mollusks living in different environmental conditions. A pearl can be white, cream, yellow, pink, gray, black, green, blue, or even red. The shapes of pearls can be various and fanciful, ranging from pear-shaped to irregular to rounded. However, the most desirable are regular, spherical pearls. Pearls balance the rhythm of life according to the cycles of the Moon. They bring stabilization, balance, and help to be reborn anew.