I have a little over 1400 cosmic runes for sale.
300gp per rune. Tell me how many you want, along with your RS2 name and I’ll pm you when I am online.
Alright, I posted this before I actually knew prices. The price is now 200 per cosmic, and I now have about 1300 runes for sale. Leave your name here, or pm me in game - username aaronbobby