James Buchanan Brady, commonly known as "Diamond Jim," was a flamboyant Gilded Age figure who was famous for his love of fine dining and extravagant lifestyle. While the name "Diamond Jim" is one of his best-known nicknames, he was also referred to by a variety of other monikers during his lifetime, including "Napoleon of Wall Street," "King of the Dining Car," "The Great Hoaxer," and "The Prince of Pikes Peak." These names reflect the many facets of Brady's complex personality: his business acumen, his love of luxury, his flamboyant style, and his larger-than-life persona. Regardless of what he was called, Diamond Jim remains a legendary figure in American history.