You have to know NOBODY in their right mind would sell their company (or brand) for only 1 year's sales. That's not how businesses being sold are valued...
Obviously, neither Bellissima nor ICNB fall into category 4 as you had suggested. My personal guess would be at least somewhere between category 1 and 2.
Bare minimum would be twice the sales... Not very likely he would give such an outrageously good deal to anybody with such fast growth, though.
The sales price will partially depend on how high revenues are built up to at the time of the sale.
It's anybody's guess what the upper multiple would be when it comes time for a sale, but I do not believe it will be only 1.