Is gray the ONLY type of socket equipment?

[belmont]

Hi, all,
I picked up some gray items when playing on Bnet. But they seem have poor spec points so I don't want waste my good gems on them. But none of the good spec items are socketable either. I know this is a terrible noob question. Is gray the ONLY type of socket equipment? You can never get a golden or dark golden item with sockets, right? That means I have to use my gems to refurbish them into good items...

[Anthraquinone]

Also blue (=magical) and yellow (=rare) items can have sockets.
If you play with the expansion then some green (set) and golden (unique) items also have sockets. Furthermore, you can socket items using the Lazurk quest in act5.

Runewords can only be made in grey items.

-AnQ

[belmont]

what if I use cube to punch holes on items? (I know there is some formula for that...) will that work on green and other items? thanks!

[SnickerSnack]

The cube recipes are here: http://www.battle.net/diablo2exp/items/cube.shtml

If there is a recipe to add sockets to a set item, then you can do it. Just read the list of recipes.

[belmont]

I have defeated Diablo in normal, but haven't seen a single non-gray item with sockets? I have a couple of perfect gems already, can't wait to try them. :)