The theft occurred on Saturday, June 24, at the Walt Whitman Shops mall in Huntington Station, according to Suffolk County Police.
Detectives said the duo entered the store at around 5:40 p.m. wearing graduation caps and gowns.
They then banned $37,750 worth of bags before fleeing without paying.
No employees or customers were injured.
Anyone with information in the case is asked to contact Suffolk County Crime Stoppers at 1-800-220-TIPS. The organization is offering a cash reward for tips leading to an arrest.
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