Robbery detectives believe heists at two San Diego jewelry stores within six weeks of each other are connected.
The latest robbery happened Saturday night at the Jared store on Carmel Mountain Road.
Police say one suspect armed with a gun told everyone to get on the ground while a second suspect smashed glass cases with a hammer and stole jewelry.
The robbery came less than six weeks after two armed suspects pulled off a smash-and-grab heist at the Jared Store on Camino De La Reina in Mission Valley on Dec. 5.
Surveillance cameras in the Mission Valley store show the men -- dressed in dark clothing with their faces concealed by bandanas -- point a gun at customers and employees and clean out a display case.
The suspects were in and out of the store in less than a minute.
"I'm here paying off a credit line and I wouldn't want to be in that situation fearing for my life," Jared customer Ron Andres said. "I might do my payments online this coming month or so."
Employees say Carmel Mountain Ranch location hired private security after the heist.
San Diego Police Department Robbery Unit Lieutenant Martha Sainz said the Mission Valley location lost about $200,000 worth of merchandise. The Carmel Mountain location's losses are unknown, Lt. Sainz said.
Anyone with information can call SDPD's Robbery Unit at (619) 531-2299 or the Crime Stopper's anonymous tip line at (888) 580-8477. Anonymous tips can also be made online at www.sdcrimestoppers.org.
Up to $1,000 is being offered as a reward for information leading to an arrest.