NEW YORK--(BUSINESS WIRE)--The Estée Lauder Companies Inc. (NYSE:EL) today reported net sales for its third quarter ended March 31, 2015 of $2.58 billion, a 1% increase, compared with $2.55 billion in the prior-year quarter. The Company reported a 200 basis-point increase in operating margin, and net earnings for the quarter rose 28% to $272.1 million, compared with $213.2 million last year. Diluted net earnings per common share increased 30% to $.71, compared with $.54 in the prior year. For t