Shop our extensive selection of Radiant Cut, Si2 diamonds and build the perfect ring today. Each of Ritani's conflict free sourced loose diamonds comes with its very own GIA or AGSL certification report, detailing the diamond's 4C grades. Once you've selected your perfect stone, choose from a diverse range of engagement ring styles, including yellow gold solitaire and double halo ring settings. Our excellent customer service team and expert gemologist service will provide any assistance or guidance you need during the selection process. Visit one of our local jeweler partners, located across the US, to take advantage of our free in-store preview program and see your loose diamond or engagement ring in person (US only).