Two thieves went on a high-end Midtown shopping spree with stolen credit cards, racking up a nearly $50,000 tab for Tiffany earrings, a Rolex watch and other pricey merchandise, authorities said yesterday.

Crystal Green, 27, of Norfolk, Va., and Maurice Chatman, 41, of Manhattan, were arrested Friday and charged with grand larceny after making an illegal purchase at the Tourneau store on East 57th Street.