14 year upgrade

My husband wants to upgrade my current 1.5 elongated cushion for something else I might like. My rings size is 4.

I’m completely unsure of what I want. Well I think I I have a favorite and is the solitary round 2.5ct.

But I want to know what you guys think. The blue sapphire ring I would like it smaller. the stone it’s a 4ct, a 3ct would be good for me.