Ay karumba! I swear these block patterns are haunting me. They are so, so tricksy.
Della's vase looks much like Inwald's Jacobean (aka "Milord")...but I feel the pedestal base and the top are not an exact match. Della's vase base is scalloped/rounded, whereas Inwald's Jacobean appears to be angled flat, and also is much tighter pinched in.
Della, does the base of your vase have that highly polished mirror shiny grind of your Inwald Carnival piece? Absence or presence of such a base won't confirm Inwald as the maker, but it would be another piece of info to help.
I haven't yet had the chance to check this further - but I will.