At around 1pm Wednesday, three suspects dressed in black from head to toe came into the Zales Outlet at 5203 W. FM 1960 and began smashing the display cases with sledgehammers and started stealing jewelry.
The two employees and two customers who were inside ran to the back of the store and hid in a room until they thought the men had gone.
It's unclear how much merchandise the crooks made off with.
Investigators say the suspects fled in a white 4-door vehicle.
Anyone with information about the identity and/or whereabouts of the suspects in this case should contact Crime Stoppers at 713-222-TIPS.