What does the story diamond necklace reveal about manners and values of the society?

The story "The Necklace" by Guy de Maupassant highlights the values of vanity and social status prevalent in 19th-century French society. The protagonist, Madame Loisel, is consumed by her desire for wealth and luxury, leading her to borrow a seemingly expensive necklace to impress others. This obsession with appearances and the societal pressure to uphold a certain image ultimately results in her downfall, revealing the superficiality of societal values and the dangers of prioritizing materialism over authenticity and genuine relationships.