Cosmic rune
OSRS Grand Exchange price, high alch, and buy limit for Cosmic rune (F2P). Used for enchant spells.
Buy offer (Wiki low)
117 gp
Sell offer (Wiki high)
123 gp
High alch
30 gp
Low alch
20 gp
GE buy limit / 4h
18,000
Shop value
50 gp
Weight
0 kg
GE tax (2% on sell)
-2 gp
Net flip profit
4 gp (3.4%)
Cosmic runeF2P
Instant buy 123 · Instant sell 117 · GE limit 18,000/4h
Tax uses the live 2% Grand Exchange rate (capped at 5M GP per item).
Cosmic rune price & alch
Live Grand Exchange offers for Cosmic rune: buy near 117 and sell near 123. High Level Alchemy yields 30; low alch is 20. The GE buy limit is 18,000 every 4 hours. After the 2% GE tax (2 at a sale of 123), estimated net flip profit is 4 per item (3.4% ROI) — about 72K at a full limit if every unit fills..