Setting help!

I chose this ring and the CAD design had showed the prongs to the bezel closer to the diamond. The one I received is essentially floating in a basket and I question the integrity of it so we are resetting it! I'm thinking of going with something like the frank darling daily bezel but I'd like honest opinions on it being open at the bottom. I want it to be as sleek as possible without sacrificing the safety of the ring and allowing the diamond to still really shine. Please note the frank darling setting is a 2 carat on 1.5 band. Could I get away with this band width on a 2.5 or 3 carat diamond? I'd like it as slim, sleek, and low profile as possible to sit flush with a wedding band.