Oh man, what a bummer.
Just for simplicity here's the text from the ad, although I would think that is any Fiends found it they would have taken it to lost and found:
My Daughter lost her Engagement ring while camping at Fort Wilderness, either in Hot tub at Hotel or at camp site, can describe if you have it REWARD $$$$$$
we stayed at site 1810, from Dec 13 till 19th , contacted Disney but no one has found it or turned it in ........Thank you for any help, Merry Christmas .......John