Use our diamond education to learn about Oval Cut, Internally Flawless loose diamonds and build the perfect custom ring she'll marvel at 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. After you select the stone that's right for you, complete your ring with a style from our diverse selection of ring settings, from timeless solitaires to sparkling antique halos. Contact our non-commissioned virtual gemologist or our excellent New York based customer service team if you need help or guidance while choosing and purchasing your diamond. Ritani partners with local jewelers all over the United States so you can preview your diamond ring in-person, for free.