My impression after finishing the game is that everything tied to the anvil - embedding, purifying, crafting gems and "infusing" weapons - almost only makes sense to use in a New Game+ after
you've already finished the game at least once. Without farming for gold or orbs I never had enough of them to do anything meaningful.
So, my tip for anyone who wants to normally play through the game without grinding more than the game already demands: Just don't bother with any of it. It isn't necessary to finish the game at all.
Exactly. The whole crafting system feels arbitrary and overblown, but still keeps me going since the game itself is great and that's where you can still upgrade something after you have almost all weapons...