[Biker1]

If the hatch lines are light in color, that is normal.
Leads me to believe that the other sticker is fine also due to the fact that this device is NIB but to be sure, maybe someone with an xv6900 can tell you what their stickers look like.

See post #4 regarding the sticker replacement question.
The sticker with "void" on it is a different animal.
I think your device is fine though.
Just check out that void sticker to make sure that is normally like that prior to water damage.
Some devices have internal water mark stickers but I do not know exactly where they are and I don't know if the techs in store check those out. I don't remember the Tech disabling my Diamond except to remove the back cover where the water mark sticker is visible in addition to the one on the battery.
I don't know if the Diamond has a water mark sticker on the inside.