Stone Money refers to large, circular stones used as a form of currency by the people of Yap, an island in the Federated States of Micronesia. These stones, made from limestone, can weigh several tons and are often carved with intricate designs. Their value is determined by size, craftsmanship, and history, rather than their physical presence. The use of Stone Money is unique because transactions do not require the stones to be moved. Instead, ownership is transferred through verbal agreements, making it a symbolic form of currency. This system highlights the cultural significance of money beyond mere physical exchange.