Browse and build her a unique Round Cut, 1.8 Carat diamond ring with a unique setting she'll cherish forever. All Ritani products are ethically sourced and come with a certification report from the established diamond agencies GIA or AGSL. When you've found your gemstone, you can then peruse our large selection of engagement ring settings and metal types, such as platinum or rose gold. Our helpful customer service team and offer gemologist service will serve any assistance or advice you need during the selection process. We have partnered with local jewelry stores across the US so that you can see your loose diamond or designer jewelry in person and try before you buy.