Police aren’t calling the woman a suspect but say they are just trying to identify her.
The woman picked up a customer’s ring off the jewelry counter while the customer was trying on other rings.
Police tell 24 Hour News 8 she was only in the store for about three minutes.
She is described as a white woman around 70-years-old and 5 feet 4 inches tall, according to police.
Anyone with information is asked to call the Portage Department of Public Safety at 269.329.4567 or Silent Observer at 269.343.2100, www.kalamazoosilentobserver.com.