What effect does Mathilde's borrowing the necklace have on the plot of "The Necklace"? It is the turning point in the story, in which everything changes for Mathilde and her husband. It is the resolution of the story, in which Mathilde solves her problem of having no jewelry to wear to the ball. It is the rising action that leads to her losing the necklace and searching for a solution. It is the climax of the story, which provides excitement and suspense for the reader.