Select and preview your Oval Cut, 1.8 Carat diamond at one of our respected nationwide jewelers (US only). All of Ritani's high quality loose diamonds are examined by the GIA or AGSL, complete with a detailed grading and certification report. You can start here with a diamond, or start with one of our gorgeous ring settings, including vintage-inspired halos and modern bezel settings. Contact our expert virtual gemologist or our superb New York based customer service team if you need help or guidance while choosing and purchasing your diamond. 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.