Mentions of sapphire in ancient references reach well back past 800 B.C. Certainly the ancient Greeks, Persians, and Romans all knew of blue sapphires and employed the precious gemstones in their jewelry. In the world of the ancient Mediterranean, priests and sorcerers honored the sapphire above all other gems. As the centuries passed, European royalty came to highly favor sapphires believing the stone would provide protection from harm. In the medieval world blue sapphires were believed to represent heaven, and thus the precious gemstones were widely used in ecclesiastical jewelry.