Purchase at Ritani.com and ship your Princess Cut, 5 Carat diamond wedding ring to a local Ritani jewelry store near you (US only). When you buy from us, you can be guaranteed your diamond was responsibly sourced and certified by either the GIA or AGSL. Once you've selected your perfect stone, choose from a diverse range of engagement ring styles, including elegant solitaire and vintage halo ring settings. If you run into questions as you're choosing a diamond, try our virtual gemologist for real-time advice from a non-commissioned expert. Ritani partners with local jewelers all over the United States so you can preview your engagement ring in-person, for free.