A Roman ring from Marion on Cyprus, ca 350 AD.
"The worst crime against mankind was committed by him who was the first to put a ring upon his fingers: and yet we are not informed, by tradition, who it was that first did so. For as to all the stories told about Prometheus, I look upon them as utterly fabulous [...] It was the hand, and a sinister hand, too, in every sense, that first brought gold into such high repute: not a Roman hand, however, for upon that it was the practice to wear a ring of iron only, and solely as an indication of warlike prowess."
Pliny the Elder - Naturalis Historia (the Natural History) XXXIII.4
Translated by J. Bostock and H.T. Riley