Celebrity Royal Rocks: the Engagement Rings of Princess Brides By InStyle Editors InStyle Editors Instagram Twitter InStyle's mantra is "Everybody's in," and that means anyone who finds their way to our stories should find themselves reflected in them. We prioritize bringing the right writer to every story and sometimes collaborate as a team to ensure we're including points of view across race, gender expression, body size, skin and hair type, and more. Our editors and writers comprise decades of expertise across the beauty, fashion, lifestyle and wellness spaces in print and digital. We prioritize journalistic integrity, factual accuracy, and also having fun with every story we share. For more about our team, click here. InStyle's editorial guidelines Published on November 7, 2010 Pin Share Tweet Email Photo: Getty Images; Everett Collection With Royal watchers speculating that Prince William will soon propose to girlfriend Kate Middleton, the next thing everyone wants to know after when it will happen is who will design the engagement ring? The odds-on favorite is Garrard, jeweler by appointment to the Crown (Diana and Fergie’s rings both came from the British institution). What kind of design will Wills choose for his bride-to-be? We predict the classic but fashionable Middleton will like an elegant square shape—like an Asscher or a cushion-cut—in a beautiful platinum and diamond boxter setting. Until Prince William pops the question to Kate Middleton, here’s a look at the most memorable royal engagement rings from over the years. —Marion Fasel MORE! View the best dressed celebrity brides of all time. Check out these celebrity-inspired engagement rings. Was this page helpful? Thanks for your feedback! Tell us why! Other Submit