Abigail Lee Kemp was arrested in Smyrna, Georgia, along with a second person who was present at the time, the FBI said in a statement to PEOPLE.
The bureau declined to release additional details about Kemp's arrest, or the identity of the second person, citing "ongoing investigative efforts."
The case received national attention following the FBI's public call for information last week, which the bureau said quickly led to "numerous credible leads."
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Kemp is accused of robbing six jewelry stores in five states (Florida, Georgia, North Carolina, South Carolina and Tennessee) beginning in Georgia on April 29, 2015, according to the FBI.
The FBI said the robbery suspect was last seen on surveillance video on Jan. 4 when she allegedly robbed a store in Mebane, North Carolina, after allegedly detaining two employees, at gunpoint, in a back room.
Both suspects were described as "armed and dangerous."
It was not immediately clear if the male suspect was in custody, nor was it clear what charges Kemp faced or if she had entered a plea.
The case will be prosecuted by the United States Attorney's Office for the Northern Division of Florida, the FBI said.
With reporting by TIM NUDD