Shop our expanded selection of Oval Cut, 1 Carat diamonds and build the perfect women's wedding ring today. 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. You can start here with a diamond, or start with one of our magnificent ring settings, including vintage-inspired halos and sleek bezel settings. Use our customer service team and virtual gemologist to help assist you if you want experienced assistance. Ritani partners with local jewelers all over the United States so you can preview your engagement ring in-person, for free.