Build a stunning Radiant Cut, E Color engagement ring with a stone from our wide selection of loose diamonds. Radiant Cut, E Color diamonds are versatile enough to suit a timeless solitaire engagement ring or a vintage-inspired halo setting. All Ritani stones come with their own certification reports from the GIA or AGSL, complete with measurements, inclusion diagrams, and the details behind every 4C grade. Our diamond education and skilled customer service team are available to help if you come across questions or issues. When the selection process is complete, you can preview your diamond or custom bridal jewelry for free at any of our authorized local jewelers.