From Mariah Carey’s record-breaking diamond to Grace Kelly’s timeless Cartier classic, a look at the most expensive celebrity engagement rings of all time. Georgina Rodríguez’s dazzling oval-shaped diamond from Cristiano Ronaldo sparked a frenzy, estimated at $2-5 million. Post navigation Gluten-free ragi pancakes to control blood sugar and boost your health Aamir Khan prayed God to give all his success to brother Faissal Khan after failed attempts to save his career: ‘I tried my best to help him’