Blue Nile Blue Nile ( NILE)said last month that its CEO Diane Irvine resigned, providing no explanation for her departure. Vijay Talwar, senior vice president and general manager of its international business, was named interim CEO. The company is currently seeking Irvine's successor, with the search being led by Chairman Mark Vadon. Irvine had been with Blue Nile since the company was founded more than a decade ago, serving as chief financial officer before assuming the CEO post. In its third quarter, Blue Nile's earnings fell short of Wall Street's estimates, sending shares free-falling nearly 20%. While the online jeweler's sales rose 11% to $75 million, the rest of the report didn't look so hot, with profit plunging 32% and the company offering a weak outlook for the end of the year. >>To see these stocks in action, visit the 6 Retailers Banking on a New CEO in 2012 portfolio on Stockpickr. - Reported by Jeanine Poggi in New York.