During this time, receive double the amount of Refining Stones that you would normally get wherever you are in game, and by any method you would normally receive refining items.

2X Refinement Stones starts Thursday, July 12 at 10am PT

2X Refinement Stones ends Monday, July 16 at 10am PT

If you want to maximize your refinement gathering potential, please read Baron’s Neverwinter Gem Mining Guide