Volume of ten billion gold rings

I have no idea why I asked this or if I was quoting from some third party source that I forgot to cite this was written earlier in a draft.  Maybe I was doubting claims about how much God was in the world.  

This is what the draft said

How much volume would 10 billion pure gold rings have without any added non gold parts such as diamonds

For 5 billion married couples

How many Olympic swimming pools of gold allegedly are in the world and how do these volumes compare