Use our diamond education to learn about Asscher Cut loose diamonds and build the perfect custom ring she'll marvel at forever. All of Ritani's high quality loose diamonds are evaluated 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 magnificent ring settings, including vintage-inspired halos and sleek bezel settings. Contact our free virtual gemologist or our skillful New York based customer service team if you need help or guidance while choosing and purchasing your diamond. When you've chosen your diamond or engagement ring, you can select to preview it in-person, for free, at one of our US based, local partner jewelers, from San Francisco, CA to New York City.