A 1 carat princess cut diamond ring is the perfect choice for a chic woman who likes modern lines and a clean look. A princess cut diamond will sparkle with all the brilliance of a round shape but with the sharp angles of a square in your 1 carat engagement ring. For some creative inspiration, check out our Top Twenty Engagement Rings to find the 1 carat diamond ring of your dreams. If the square look appeals to you, why not buy matching 1 carat diamond earrings for your first anniversary?