Use our diamond education to learn about Round Cut, 1 Carat loose diamonds and build the perfect engagement ring she'll worship forever. Each of Ritani's responsibly sourced sourced loose diamonds comes with its very own GIA or AGSL certification report, detailing the diamond's 4C grades. Once you've discovered the stone that's right for you, shop our wide range of engagement ring settings and metals, including favored palladium styles. Our helpful customer service team and offer gemologist service will contribute any assistance or guidance 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 wedding ring in person and try before you buy.