If you are not happy with the number of sockets in your item you have several possibilities to change it.

With normal items (grey colored), there are 3 basic methods to get normal socketed items:

Rerolling is like getting another item with completely different affixes, but it shares the same item type and quality. The magical rerolling recipes are kind of interesting and can be used creatively.

You may socket originally unsocketed unique and set items using Socketing Quests. It always adds just one socket.

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