Use our diamond education to learn about Radiant Cut, 1.5 Carat loose diamonds and craft the perfect custom ring she'll appreciate forever. All of Ritani's high quality loose diamonds are certified by the GIA or AGSL, complete with a detailed grading and certification report. You can start here with a diamond, or start with one of our gorgeous ring settings, including vintage-inspired halos and modern bezel settings. If you need help along the way, you may engage with our customer service team or virtual gemologist. When you've chosen your diamond or wedding ring, you can select to preview it in-person, for free, at one of our US based, local partner jewelers, from San Jose, CA to New York City.