I am not best at doing this but I will try :D 

If you have ,  gem what you want to take out of your eqs just follow this guide :)

You must do Language barrier quest to do this you can click this like for guide for that ---> http://apo.activeboard.com/t54584573/language-barrier-guide-faust-redone/ by Faust.

Requirements: Blacksmith Pillars ( look picture ) , obtainable from Mall npc. ( look picture )

When you done the quest go to Ticket NPC 2229, 2782 Argent and buy ticket to Spring ( look picture ) 

Teleport to there using ticket what you just bought.

You will apear near Teleporter and Blacksmith. ( look picture )

Now just go left... Go straight left until you come to this dude ( not really dude ... ) ( look picuture ) 

Right click him and press Extract gem...

You will now need to put your equipment ( sword , armor , gun , gloves , boots.... ) at Equipment part of it , and Blacksmith pillars on other part of it ... So it should look like this ! ( look picture) 

Price will depend if your sword is very good gemmed or low gemmed.

It is +1 = 10000 +2 = 20000 etc...

Press okay and you will get level of gem that you extracted and lower gemmed sword . **WARNING you will not get your refing gem back from gem extracting**

Thanks for reading ! :) Hope it helped! :D