Guy de Maupassant's story "The False Gems" is often referred to casually as "The Jewelry." The story is about a man of modest means who is madly in love with his beautiful wife, who has a predilection for two things, the theater and false jewelry, both of which the narrator loathes. Irony is woven throughout the story, such as when the narrator discovers that the jewels are not really false at all but that his wife is.
The ultimate irony of "The False Gems" comes at the end of the story, when readers learn the fate of the narrator. He is sure of his beloved wife's fidelity and virtue, but he is completely miserable because she has a violent temper. He was happier with a woman who was unfaithful and dishonest, although he didn't know it, just as he didn't know that her false gemstones were actually the real thing. Finding what he thought would make him happy, he actually had a worse life.