Full title: A 2,000 year old hololith ring carved entirely from a single massive sapphire. It is believed to have belonged to the infamous Roman Emperor Caligula, with the engraving depicting his fourth wife, Caesonia. The gold band was added in the Middle Ages to resize it.
“Ol’ fatfingers” Caligula they called him.
Imagine your fingers so fat, when you make a ring for yourself, the next guy wearing it needs to put a whole ass extra ring in it just so it doesn’t slip away.