St. Elmo Custom MedalAvailable in Sterling Silver, 14kt Yellow Gold, and 14kt Gold Filled. Three sizes to choose from: Large: 1 x 3 4 inch Standard: 3 4 x 1 2 inch Charm: 1 2 x 1 4 inch Also known as Erasmus, Saint Elmo fled from Italy during Diocletian's persecutions. When found, Elmo was set on fire, which can be linked to the phenomenon 'Saint Elmo's fire' that is named for him. He was one of the Fourteen Holy Helpers, protecting domestic animals. Died: circa 303 at