The marriage proposal is one of the most important events of a couple’s life. This is where they decide that they want to live the rest of their lives together, for better or for worse. Others keep the proposal sweet and simple, while others make it detailed and elaborate. Whether it’s simple or grand, the bride to be must love the engagement ring. It’s an added pressure to the guys if they are marrying a celebrity, as the whole world will judge the ring. Here are the prettiest engagement rings of celebrities that we have seen so far.