Oh googleglobberyglugging heck Shannon. I HATE valuations....even stabs at valuations. I would guess MORE than you paid for it. And the value of Carnival is just so....oh......so impossibly difficult. Show me a book value and I'll show you a bunch of pieces that sold for more than that and conversely for less than that. (I hate "book" values even more than I hate valuations). And having said all that, Shannon, I admit to wanting to know what my glass is worth too :oops: I am such a creature of contradictions.
Value depends hugely on condition. If it is perfect that is good. The value of Carnival also varies greatly according to the quality of the iridescence. If you have a knock-you-over iridescence that makes you gasp - trust me - it's going to be worth more than "book" value!
But of course, the main thing that affects value is where and when you chose to sell. The right auction, the right convention, the targeted private sale. The whole thing is a movable feast.
So, forgive me, I have to duck out here and admit to being uncomfortable with giving a valuation. It's just not an "off the shelf" piece to stick a dollar tag on.
I can confirm that Vintage is known in the candy ribbon (tight or fine crimp edge) - and I have seen examples of it.