Search our large inventory of Radiant Cut, 2.5 Carat, Very Good diamonds to discover the stone that's perfect for you. Continue designing your custom engagement ring with one of our gleaming metal options or one-of-a-kind ring settings, from modern bezel settings to antique-inspired halo engagement rings. You can trust that our loose diamonds are certified and responsibly sourced; each one comes with a detailed AGSL or GIA grading report. For expert advice on your purchase, consult our non-commissioned virtual gemologist service or our outstanding customer service team. Preview your custom wedding ring or diamond ring for free at any of our authorized local jewelers.