St. Simon the Apostle 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 Simon the Zealot was one of the twelve Apostles, called the Zealot both to distinguish himself from Simon Peter and for his practicing of the Jewish Law before being an Apostle. Simon preached the Gospel in several countries, but his identity is often confused with other Simons. One story