Elegant picnics on lush green lawns, beautiful women wearing exquisite hats: the Prix de Diane Longines is an essential date in the calendar of elegance. And at the same time it is one of the most prestigious and popular dates in the calendar of flat racing. The racecourse at the magnificent Château de Chantilly will provide an ideal backdrop for Longines to illustrate the qualities of style and elegance that it promotes. In the same vein, the brand will be presenting a prize to the most elegant woman in its “Mademoiselle Diane par Longines” competition, to be held on Sunday, 12 June.