The ancient treasure is immensely valuable- by the standards of 3000 years ago. Due to inflation, it is now worth £2.30
The Player Characters sell it and use the money to buy a pack of gum to split..
The PCs sell it and give the money to a homeless person
The PCs sell it and invest safely.
There are three kinds of people…
four kinds of people.
The PCs keep it as a cool knickknack and a conversational piece.