In an underwater excavation, archaeologists found a rare engraved Roman gemstone in the village Lio Piccolo, just north of Venice, Italy, Italy 24 Press News reported last week.The cut agate gem is engraved with a mythological figure and is being considered an unusual artifact, particularly in an underwater environment. The quality of the jewelry indicates that wealthy Romans might have visited the area."In a lagoon environment it is a rather rare find, to date we have news of two other precious gems found in Torcello and at Barena del Vigno," said Carlo Beltrame, who led the excavation alongside Elisa Costa,...