Princess Diana and Kate Middleton
Rather than give Diana a family piece, Prince Charles bought her sapphire and diamond ring from royal jeweler House of Garrard. "There's a very famous sapphire brooch which Queen Elizabeth wears regularly, passed down from Queen Victoria. That was the inspiration for the sapphire engagement ring that the Duchess of Cambridge wears," they told MarieClaire.com during an exclusive interview. "Prince Charles had always seen this beautiful sapphire brooch of his mother's, which House of Garrard had created. When he went to House of Garrard he saw that ring, and thought it was perfect."
Prince William eventually gave Diana's ring to his wife, Kate Middleton.