nice luxury hotel central London not too expensive??

[RanToTheHills]

dh & I have a sat black tie do coming up w/o kids
in central London so are looking for nice centrally located place to stayt. Ideally not too expensive but still fairly swish. Any recommnedations?
Thanks!

thanks - looks lovely!You enjoyed it then?

also want to check out Bloomsbury/CGarden area as that's nr to the function.any thoughtsanyone?

thanks both!