A suburban Chicago woman has been given a $25,000 diamond and emerald ring three months after she found jewelry and turned it in to police.

Karen Wonders of Aurora said she gave the man's pinkie ring to police after discovering it in a Naperville, Ill., parking garage Aug. 5. Investigators were unable to determine its origins, the Chicago Tribune reported Wednesday.

Police said no reports were filed about the missing ring and no area jewelers identified it as coming from their stores.