A pearl necklace is a type of jewelry made from pearls, which are organic gemstones formed inside mollusks, such as oysters and mussels. These necklaces can vary in length, style, and the type of pearls used, including natural pearls and cultured pearls. They are often associated with elegance and sophistication, making them popular for both casual and formal occasions. Pearl necklaces come in various designs, from single strands to multi-layered styles. They can be paired with different types of clasps and materials, such as gold or silver, to enhance their beauty. The timeless appeal of pearl necklaces has made them a staple in many jewelry collections.