I ordered one box to check the color variation between tiles.  What I found is that there is not a significant difference in the color between the tiles, but the sheen is much different between them.  1/2 the box had a nice sheen while the other half had a significantly shinier sheen, almost silvery, which was painted on and looked very fake and cheap.  I don't know why other reviewers haven't mentioned this difference, but I could never recommend.