Pearl earrings refer to a type of jewelry that consists of two pearls attached to an earring back, typically made from gold or silver. The term can also be used more broadly to describe any pair of earrings with pearls as the main feature. Pearls are organic gems formed within mollusks and come in a variety of colors including white, black, gray, green, blue, purple, red, and orange. They have been valued for their beauty and rarity since ancient times and continue to be popular today as symbols of elegance and sophistication.