How to use stones for a noob...

Man I just started and I'm having some difficulty on the nature use of the many upgradable gears using the Stone.. could any of u homies help a noob out.. thanks
The stones can only be used in your equipment when you reached the upgrade limit (reached max level) of a certain item.. ex. Sword, armor etc. After that stones are required for you to upgrade it. In unique sets, the cap is set at 120 level I guess...

Power stones have a different use though..
lazyboi
The stones can only be used in your equipment when you reached the upgrade limit (reached max level)...
Thanks.... Know I understand... I appreciate it.... Been trying to understand how it's done... thanks
Ok good luck. Just save your stones on equipment that really suits you best cause its not really easy to acquire. Use it on Unique sets or Legendary items if possible.