Like all Power Cells the "Diamond Mining Cell" is also an all-purpose-tool for pulling blocks, except for ore. Diamond Mining Cells can be crafted in your Crafting Menu (default key "Q") or at Crafting Tables (that still exist in worlds created before R22 on September 16th 2015). However at first the crafting-recipe has to be unlocked by crafting an Iron Mining Cell, finding one in a Diamond Treasure Chest or take it from a drop of the thing for example. To craft one Diamond Mining Cell, you'll need (as of R27 in January 2016):