We have these in the purple color and have had NO issues with excessive wear, etc.  We ordered them directly from the pediped website last spring when they came out and have worn them as soon as it was warm out this past spring until now and they've worn great - they almost look brand new!  They just shimmer and none of the jewels or purple shimmer has worn off.  I didn't know how much the purple would match my daughter's clothing but they go with a surprising number of pieces.  Hoping to order another pair in the next size up for next year.