IC2 Diamond is the IndustrialCraft 2 mod's diamond entry, registered under the item ID ic2:diamond and functionally identical to the vanilla Minecraft diamond. The mod uses this item as the canonical crafting reagent for its high-tier tools and machinery in Minecraft 1.7.10 and 1.12.2, where IC2 ships its own diamond stack to guarantee recipe compatibility before Forge's OreDictionary unification kicks in. Players obtain IC2 Diamond exactly the way they get vanilla diamond: mining Diamond Ore at Y level 16 or lower with an iron, diamond, or higher-tier pickaxe. Because IC2 registers ic2:diamond under the OreDictionary tag gemDiamond, the item stacks and substitutes freely with vanilla minecraft:diamond in every recipe that uses the gemDiamond entry. Inside IC2's tech tree, this diamond fuels the Diamond Drill recipe (an upgraded mining tool that runs on EU), the Diamond Block Cutting Blade used by the Block Cutting Machine, the Iridium tools chain, advanced circuit variants, and the Quantum Armor crafting line. Server administrators on packs like FTB Infinity Evolved, Tech Reborn-flavoured 1.7.10 modpacks, and GregTech-adjacent setups will recognize IC2 Diamond as the default diamond stack their automation pipes will move. Treat ic2:diamond as a drop-in vanilla diamond replacement with a dedicated mod namespace.