The robbers who last year accosted women at gunpoint in parking lots of Buckhead shopping centers and stole their wedding ring sets are headed to prison — one for life.

Fulton County District Attorney Paul Howard, Jr. announced the conviction of Arthur Thomas on one count of armed robbery. Judge Jerry Baxter sentenced him to life in prison without parole.

Thomas’s co-defendant Deuntria Lyons plead guilty in mid-trial to three counts of armed robbery. He then testified against Thomas. Lyons was sentenced to serve 20 years in prison.

The first of the three defendants to plead guilty was 20-year-old Jasper J. Walton. He was sentenced to serve 10 years in prison on one count of robbery. The three men, all of Atlanta, also face similar charges in up to four other counties including Dekalb, Gwinnett and Henry.

During a Fulton County crime spree that began in January 2007, at least seven women were robbed at gunpoint of expensive jewelry — including wedding rings—at several Buckhead malls and shopping centers, including Phipps Plaza and a Target store on Piedmont Avenue at Sidney Marcus Blvd.

The women were confronted as they walked toward or loaded packages into their cars. At least one of the robberies was caught on tape by a store security camera.