Odessa police arrested 41-year-old Kalynn Homfeld Tuesday on a charge of theft from a human corpse, a state jail felony.
Police on Monday released security video of a woman seen entering a viewing room at Sunset Memorial Gardens & Funeral Home, reaching into an open casket and fumbling to remove something from the female corpse.
Authorities said after the theft, which occurred April 9, Homfeld fled the scene in a vehicle.
Investigators did not immediately say what led them to Homfeld or whether the ring was recovered.
Detectives said the ring was made of plastic and only worth around $10.
The Associated Press contributed to this report.