Shop our extensive selection of Oval Cut, 1.5 Carat diamonds and build the perfect ring today. Each of Ritani's loose diamonds comes with its own GIA or AGSL grading report, verifying that all of your stone's details are correct. You can start here with a diamond, or start with one of our magnificent ring settings, including vintage-inspired halos and sleek bezel settings. If you require support along the way, you could engage with our customer service team or virtual gemologist. Ritani partners with local jewelers all over the United States so you can preview your designer jewelry in-person, for free.