In a press release, the U.S. Marshals say the highest bid in Saturday's online auction was $12,300 for a men's ring with a horseshoe motif. The gold ring has 14 diamonds and is engraved with Crundwell's initials and the name of one of her ranches.
Other items on the auction block included watches, necklaces, loose diamonds and gold bar bullion.
Crundwell was sentenced earlier this month to nearly 20 years in prison after she admitted to stealing more than $53 million from the northern Illinois city.
Authorities have been auctioning off her belongings to raise money for restitution.
Prosecutors say they only expect the city to recover about $10.5 million.