Use our diamond education to learn about Asscher Cut, 3 Carat loose diamonds and build the perfect custom ring she'll treasure forever. Each of Ritani's loose diamonds comes with its own GIA or AGSL certification report, verifying that all of your diamond's details are correct. Once you've discovered the stone that's right for you, shop our wide range of engagement ring settings and metals, including sought-after rose gold styles. For expert advice throughout your shopping, you can question our gemologist or superb customer service team. 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.