You can find all colored shards in the sea floor of Pokemon Sapphire/Ruby. Dive in the dark spots in the ocean around Sootopolis and Mossdeep. There will be slightly hard to see rocks at the bottom (kinda rare) and you press A when next to one. I don't know which rocks have which items.. All I have found are some heart scales, but keep trying, and good luck.
The color shards you can find in Pokemon Platinum are Red, Blue, Green, and Yellow Shards.
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.
Red shards can be found all over underwater areas
You cannot find it as a hm in platinum but some Pokemon can learn it naturally. You can get from the move tutor on route 212 for 2 red shards, 4 blue shards and 2 yellow shards. HOPE THIS HELPS
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!
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There are several different types of shards scattered across the sea in emerald version. i haven't playe dit in awhile, so I forget the exact locations of specific shards. However, you can go catch a bunch of Corsola and they might be holding red shards, or use Thief on them.
I believe you have to look for Red Gyarados for a Red Scale.
To get stones in Pokemon ruby you have to go to the shard hunter (surf left from Mossdeep). He will trade you stones for shards. You have to find shards by diving in the waters around route 124 (right around his house). You can use your itemfinder to find them, but they're usually just in the spots that are lighter than the surrounding area. Shards can also be found on Pokemon in the wild. The easiest way to get them is to dive, find Pokemon in the grass, and then use the move Thief on them, which will steal whatever they're holding. Relicanth- green shards Chinchou- yellow shards Clamperl- blue shards Corsola- red shards The type of stone you get from the shard hunter corresponds to the shard's color. For example, green shard=leaf stone, red shard=fire stone, etc.
Use the move dive to go underwater to find shards in the seaweed.
In Pokémon Black 2, you can obtain a lot of red shards by fishing or using the move Surf in certain areas. Notably, using the fishing method at spots like Route 12 or the eastern area of the Pokémon World Tournament can yield red shards. Additionally, you can also find them in the Hidden Grottoes scattered throughout the game. Lastly, you can trade items with certain NPCs in the game to acquire more shards.
Red shards are found underwater.