Select your perfect Oval Cut, 5 Carat diamond, graded and certified by the GIA or AGSL. All Ritani diamonds have been evaluated by the GIA or AGSL, reputable third-party agencies that provide their own detailed grading reports. You can start here with a loose diamond, or begin with one of our engagement ring settings in a wide range of metals, including rose gold and platinum. If you desire help along the way, contact our free, non-commissioned virtual gemologist service or our expert customer service team for expert advice. You can preview your diamond, unique engagement ring, or wedding band at one of our local jeweler partners, located all across the US.