Just started D2 again and I'm a bit rusty on my D2 knowledge. Apologies if the question seems silly or too obvious.

What are the different ways to socket an unique item (like Andariel's Visage or Harlequin Crest)?
I know there's the socket quest in act V, wondering if there is a cube recipe too or maybe something else which I don't know about.

Thanks in advance

There is the quest in Act 5 yes, there is a cube recipe but only for rare items.

Please post your Diablo 2 related questions in the Discussion & Guides forum.

The different cube recipes don't work for uniques items. Uniques and Sets need to be socketed at Larzuk.

Larzuk (Quest 1 Act 5) is the only way to sock a unique item. Remember, unique items will only gain 1 sock slot by using the quest.

Thank you, and will do.