Hi Cathy - thanks for that auction link. I would say it is a fake. I'd base that on the following:
1. The colour/iridescence is not characteristic of Crown Crystal original Carnival. I know that CC did make some very rare pink based Carnival, but the pastel iridescence is not typical of CC.
2. The base appears to be wider than the CC original Kingfisher berry base.
3. There is that tell-tale seam around the edge (it can be seen around the wavy ruffles, just on the inside). This isn't on the originals.
The photos are taken in a way that means you just can't make out the pattern details, as you noted. The clear ones are taken at an angle, and the others are, as you say, shocky blurry!
Judging by the date of the auction, it would seem to be one of the earliest sightings of the Fakus Todimarphus Carnivalus Glassius (fake carnival glass kingfisher).
Thanks again, Cathy