The name on jewelry has never mattered that much to me. I'm not all that interested in the highly discernable style of certain branded jewelry, but instead the stones, metals and construction of the piece. I've found that I can often get something that offers far more value for my money by shopping outside the major brands (i.e. larger stones, better constructed pieces).
I feel the same way. I prefer to get the most for my money, rather than paying for a name. I also prefer unique pieces, rather than an easily identifiable design.
as has been said here, never say never. but I definitely would choose a non-designer piece over a designer piece.