Shop our extensive selection of Princess Cut, D Color diamonds and build the perfect ring today. All Ritani products are ethically sourced and come with a certification report from the established diamond agencies GIA or AGSL. Once you've selected your perfect stone, choose from a diverse range of engagement ring styles, including unique solitaire and antique halo ring settings. Our helpful customer service team and offer gemologist service will serve any assistance or advice you need during the selection process. 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.