Moncton court

The teenager was also ordered to perform 100 hours of community service as part of her sentencing at Moncton court on Wednesday. (CBC)

A teenaged girl who stole a $15,000 diamond ring from a Dieppe jewelry store in March has been sentenced to 18 months of probation.

The 16-year-old, who cannot be identified under the Youth Criminal Justice Act, sold the ring for $500, the Crown prosecutor told the Moncton provincial courtroom on Wednesday.

The two-carat solitaire engagement ring set in 14-karat yellow gold has not been recovered, the Crown said.

It 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 the ring, then they both fled on foot.

RCMP released surveillance video of the suspects to the public and two days later, the teen turned herself into police.

The Crown says she was under the influence of drugs at the time of the theft, but admitted she took the ring.

She has no prior criminal offences, the courtroom heard.

"You started half-way up the ladder instead of at the bottom," Judge Denis Lordon told her. "You started big."

The judge ordered her to follow a number of conditions as part of her probation, including performing 100 hours of community service work, getting a mental health assessment and an assessment by addiction services.

The other suspect was questioned, but later released without charges.