Dude, there is nothing, you just catch them all in the cave by solaceon town and then the 'ruin maniac' or that crazy digger dude guy finishes digging up the cave, you can find 2 more unknown there, the '!' and the '?'. And they suck as Pokemon ^^.
cheatcodes.com
it is in solaceon town in a cave
There are 26 but since there are the ! and ? unknown 28 total
A diamond of this weight is unknown, therefore, is not possible to value.
The Unown are in the Solaceon Ruins.
A diamond of this size is unknown, and therefore, not something that can be valued.
Pearl/Diamond-Lv.30Platinum- unknown
You can find them in solaceon ruins
right of solaceon town
turn back cave
in the Solaceon Ruins.
Solceon ruins.