The Colored Diamonds Mod is a Mod they add some colored Diamonds.
The Diamonds are from varios Biomes. If u want a Diamond u need to farm some matrials of the Biom.
Grey Diamond=Mushroom Biom
Purple Diamond=Extrem Hills
Steel Ingot=Obsidian and Black Dye also a Iron Ingot
With that all Matrials u can craft some colored Swords or a Diemond and with the Diemond u can craft a Biom Sword that deals 54 Attack Damage