A pearl necklace is a piece of jewelry made from pearls, which are organic gemstones formed inside mollusks like oysters and mussels. These necklaces can vary in length, style, and the type of pearls used, such as Akoya, Tahitian, or Freshwater pearls. They are often valued for their luster, color, and shape, making them a popular choice for both casual and formal occasions. Pearl necklaces have a long history, dating back thousands of years, and have been worn by many notable figures, including Queen Elizabeth I and Audrey Hepburn. They are often associated with elegance and sophistication, making them a timeless accessory in fashion.