This exceptional ring features a river-salvaged 1/2 reales silver cob coin from the Spanish Empire, recovered from the Rimac River near Lima, Peru. Minted in the 1700s during the Viceroyalty of Peru, the coin displays the iconic castles and lions in quarters of a cross, along with the royal monogram of Spain. Set in a 95% pure silver ring, the piece weighs 15.1 grams, with an 18 mm coin diameter and a size 8 band. Authenticity guaranteed, making it a unique and historical treasure for collectors or jewelry enthusiasts.