Pearls are organic gemstones formed inside the soft tissue of mollusks, primarily oysters and mussels, as a natural defense against irritants such as parasites or debris. Over time, the mollusk secretes layers of nacre (mother-of-pearl) around the irritant, gradually forming a pearl. Pearls come in various colors, shapes, and sizes, with white, black, and gold being the most popular. Known for their timeless beauty and luster, pearls have been valued as symbols of purity, wealth, and sophistication in various cultures throughout history. They are used in jewelry, adornments, and occasionally in traditional medicine.
