Minecraft wiki entry for Diamonds, associated text: Diamond swords deal the second most damage of any sword - seven points - although both iron and diamond swords kill most enemies with 3 hits, making iron swords preferable to diamond swords which are not enchanted as they are cheaper and about just as useful. Diamond armor protects the wearer better than any other armor aside from netherite. Diamond armor and swords both have the advantage of greater durability than armor and swords of any other material aside from netherite. A full set of diamond armor requires 24 diamonds, and 9 diamonds more to make a full set of tools, which contains a pickaxe, a sword, an axe and a shovel.