[OwnedByJezebel]

"And from what I know she is a responsible breeder, she has Yorkie's that she show and some that she says not show quality"

I don't know if I understand what you are asking here. Does she actually show her dogs in the ring and are the parents championed, or is she saying that some of the pups in this litter are show quality and the others are not? At the age of these pups, it is way too soon to know if they are show quality. So much can change as they grow up so you really can't tell until they get much older.

As far as the size goes, yes, there can be that much size difference between pups in the same litter. Also, when it comes to chocolates or "rare colors," that is considered a fault. It doesn't mean they are unhealthy, just that they are pet quality and should be charged a pet quality price. If a breeder tries to say it is more valuable because of a rare color, find another breeder!