How would you react to a relative stealing your wedding rings to buy drugs?

This is going on in my family, but not directly involving me.
One sister stole her sister’s wedding rings and pawned them to buy drugs. The sister found them at the pawn shop and had to buy them back.
Sister on drugs refuses to admit she is on drugs, refuses to admit she stole and sold rings. She was identified by pawn shop.
Would you refuse to have anymore to do with her, pretend it didn’t happen or even try to get the money back that you had to pay to get your own rings back?