Round natural blue sapphire gem ring with six diamonds on sides and twelve surrounding main stone. Sapphire engagement rings meaning is so wonderful. As you can see, Prince Charles gave Princess Diana the blue sapphire ring because he wants to symbolize his faithfulness and loves to his future spouse. If you are inspired with Prince Charles and Princess Diana love story, you can also ask your girlfriend to be your fiancée with that blue sapphire ring. Yet, if you are not sure about the meaning that is implicated in this one beautiful gem in this world, you may take a look in the next explanation.