A teenaged girl who stole a $15,000 diamond ring from a Dieppe jewelry store will remain in jail until her sentencing on May 7.

Judge Troy Sweet has also ordered her to undergo a medical and psychological exam.

The stolen ring is a two-carat solitaire set in 14-karat yellow gold

The stolen ring is a two-carat solitaire set in 14-karat yellow gold, jewelry store officials say. (Courtesy of Crescent Gold and Diamonds)

The 16-year-old, who cannot be named because she is under 18, was huddled in the corner of the prisoner's box and sobbing during her appearance in Moncton provincial court on Friday.

The judge's reasons for keeping her in custody are under a publication ban.

The girl, who had turned herself into Codiac Regional RCMP on March 7, pleaded guilty to theft over $5,000 on March 12 and was released on house arrest and several conditions pending sentencing.

She was arrested again two days later and charged with breaching the court undertaking.

The ring was stolen from Crescent Gold and Diamonds at Champlain Place on March 5.

Two teenaged girls entered the store at about 6 p.m. and asked to see various items. One of them tried on a two-carat solitaire engagement ring set in 14-karat yellow gold, then they both fled on foot.

After the RCMP released surveillance video to the public, the teen turned herself into police.

Police say they know the identity of the second suspect, but she has not yet been charged.

The ring has not been located.