You can dig them up in the underground section, just keep searching.
The color shards you can find in Pokemon Platinum are Red, Blue, Green, and Yellow Shards.
Go to the underground and dig in the walls to find shards. It may take a while but you can get TM's from someone. They are sunny day, rain dance, sandstorm.
You can find different colored shards when you dive. When you see little dark spots on the bottom of the ocean they're items.
The moon stone is used in Pokemon Diamond to evolve certain Pokemon. You can find one by looking in the Underground.
You can get all 4 shards, red, yellow, green and blue. you can find them on islands or underwater spots. Sometimes, they will be invisible, so use an Itemfinder. Thanks!
The color shards you can find in Pokemon Platinum are Red, Blue, Green, and Yellow Shards.
In Pokemon Diamond TM07 can be found on Route 217. You can also trade 10 Green Shards to an NPC on Route 212 for a copy of TM 07.
Go to the underground and dig in the walls to find shards. It may take a while but you can get TM's from someone. They are sunny day, rain dance, sandstorm.
They can't be bought. You can find them underwater, or attached to wild pokemon. Chinchou have yellow shards, Clamperl have blue shards, Relicanth have green shards and Corsola have red shards.
Use the move dive to go underwater to find shards in the seaweed.
find the guy who collects shards and trade shards for stones
There are an infinite amount of shards that you can get from wild Pokemon and limited ones you can find under the sea in rocks or above in rocks.
Mining and digging Underground.
The pokewalker and the ruins of alph.
Blue shards are found underneath the water while diving.
You can find Pidey in a Pokemon Outbreak in Pokemon Diamond
Ruins of Alph. If you smash the rocks then you will find a lot of shards and some fossils.