Browse and build her a unique Asscher Cut, Si1 diamond ring with a unique setting she'll cherish forever. All of Ritani's high quality loose diamonds are examined by the GIA or AGSL, complete with a detailed grading and certification report. Once you've selected your perfect stone, choose from a diverse range of engagement ring styles, including elegant solitaire and vintage halo ring settings. Our excellent customer service team and expert gemologist service will provide any assistance or guidance you need during the selection process. When you've chosen a loose stone or wedding ring, you can select to preview it in-person, for free, at one of our US based, local partner jewelers, from San Diego, CA to New York City.