Nassau detectives said they have charged a Westbury woman with committing grand larceny and forgery by fraudulently cashing money orders that were altered to appear to be worth 1,000 times their dollar value.

Major Case Bureau detectives said Nedelyne Coq, 21, of Brooklyn Avenue, cashed three money orders that had been bought for $1 but which appeared to carry a face value of $1,000, at U.S. Postal Service branches in Roosevelt, Atlantic Beach and Westbury between July 21 and Aug. 10.

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The scheme, police said, resulted in a loss of $3,000 to the postal service.

Coq was arrested at Nassau County Family Court on Tuesday and is scheduled to be arraigned Wednesday in First District Court in Hempstead on charges of fourth-degree grand larceny and second-degree criminal possession of a forged instrument.

Her attorney could not be reached for comment.