AureusAureus Necklace is made with recycled 925 sterling silver and 24k gold vermeil. Completely handmade with a green quartz chain. Aureus was the fundamental gold currency of ancient Rome and the broader Roman world. Initially referred to as "nummus aureus" or "denarius aureus," it played a central role in Roman monetary systems. However, in Constantine's reforms in AD 312, the aureus was supplanted by the solidus, which became the primary monetary unit.