Loisels were invited to a ball. All the aristocrats were supposed to attend the ball. So, Matilda arranged a beautiful dress and borrowed a marvelous diamond necklace from her friend, Mme Forestier to look beautiful and rich in the ball. She lost it.
It ruined Loisels’ lives because they had to buy a diamond necklace worth thirty-six thousand dollars to buy a new necklace for her friend. They were indebted as it was a huge amount. Thus, it made them poor and snatched all their hopes of a happy life. It took away ten prime years of their lives.