Hey, you can find the socket stones at Alexandrian's grocery trader! To buy them you must have Exay coins & CTF Coins 
To add a socket you have to open your alchemy tab (Y-key) and switch to Socket Alchemy (from left side of alchemy tab window)
First you gotta make a slot for that stone/s via special item called 'Magic Stone of Sockets' (you can find it at Alexandria grocery shop as well).
If you wish to remove any socket stone from your item you need the 'Destrustion Rondo', you can purchase it from Item Mall (f10) search for it at Alchemy selection!
Good luck =)
To add a socket you have to open your alchemy tab (Y-key) and switch to Socket Alchemy (from left side of alchemy tab window)
First you gotta make a slot for that stone/s via special item called 'Magic Stone of Sockets' (you can find it at Alexandria grocery shop as well).
If you wish to remove any socket stone from your item you need the 'Destrustion Rondo', you can purchase it from Item Mall (f10) search for it at Alchemy selection!
Good luck =)
