What the writer want to say with the story?

What the writer want to say with the story?
In this story, I could find out about some several articles.
- The writer wants to say about the kindness, fairness of the woman and man. They could have escaped without replacing the necklace, or they could have bought fake one for the Mrs Foriester. In spite of the price they replaced it. It shows the honestness of the couple.
- Also, he wants to say about temporary happiness can bring a huge suffer. If Mrs Loiser didn’t want to go to the ball with expensive dress and precious necklace to have just one day’s happiness, their life wouldn’t turn to very poverty. Her lickerish behavior made him suffer.
- In addition, every little mistake can change our life so we must be very careful about our life.