Madeleine Forestier is a fictional character from the short story "The Necklace" by Guy de Maupassant. She is portrayed as a beautiful and charming woman who dreams of a luxurious life, despite her modest background. Madeleine is married to Monsieur Forestier, a clerk, and often feels dissatisfied with her social status. In the story, she borrows a diamond necklace from her wealthy friend, Madame Forestier, to wear at a fancy ball. After losing the necklace, she and her husband work for years to repay the debt incurred to replace it, ultimately leading to a life of hardship and regret.