POE Jeweller's Orb is a currency item that can be used to upgrade or re-roll the number of sockets on an item. It can be obtained by trading with other players or by killing monsters, chests, and strongboxes in the game.

To obtain a POE Jeweller's Orb, players can either trade with other players or purchase them from the in-game store. The cost of a POE Jeweller's Orb varies depending on the current demand in the game.

Players can use POE Jeweller's Orbs to re-roll the number of sockets on an item. This can be done by right-clicking the item and selecting "Use Jeweller's Orb". This will open a window that allows the player to select which item they wish to re-roll, and the number of sockets that can be obtained. Each use of a Jeweller's Orb will cost one Orb.

Players can also use POE Jeweller's Orbs to upgrade the quality of an item. This is done by right-clicking the item and selecting "Use Jeweller's Orb". The player will then be presented with a window that allows them to select which item they wish to upgrade and the level of quality they wish to achieve. Each upgrade will cost one Orb.

In summary, POE Jeweller's Orb is a currency item that can be used to re-roll the number of sockets on an item or to upgrade the quality of an item. It can be obtained by trading with other players or by killing monsters, chests, and strongboxes in the game. It can also be purchased from the in-game store. Each use of a Jeweller's Orb will cost one Orb.