Diana Chose Her Own Engagement Ring – True
The Crown foreshadows Diana’s future marital struggles by showing her choosing her own engagement ring from the crown jeweler. She settles on a Ceylon sapphire ring because it reminds her of her mother’s engagement ring, and its color matches Diana’s eyes. It should be noted that this actually happened in real life.

Buckingham Palace received the ring with the story that it was for Prince Andrew’s 21st birthday, in order to prevent news of the engagement from spreading. Interestingly, Diana kept the ring after her divorce from Prince Charles, and later, Prince William used it to propose to Kate Middleton.