Cosmic rune price - OSRS Grand Exchange

Used for enchant spells. The current Old School RuneScape Grand Exchange price of Cosmic rune is approximately 120 gp (buy 122 gp, sell 117 gp).

• Buy (insta-buy) price: 122 gp
• Sell (insta-sell) price: 117 gp
• Buy limit (4 hours): 18,000
• High alchemy value: 30 gp
• Members item: No

Cosmic rune price trend, last 30 days

Over the last 30 days, Cosmic rune has traded between 116 gp and 136 gp. The price is roughly flat across that window, moving from about 119 gp to 119 gp, and roughly flat over the last 7 days. The sharpest single-day move in that stretch was +10.7% on September 22, 2026.

About 291,190,812 units changed hands across those 30 trading days, an average of 9,706,360 per day, so Cosmic rune is currently extremely liquid: offers at fair prices typically fill within minutes.

For flippers, the current spread is 5 gp before tax and about 3 gp per item after the 2% GE tax; a full buy-limit cycle of 18,000 ties up about 2,106,000 gp and can return up to 54,000 gp. Step-by-step numbers are on the how to flip Cosmic rune page.

View the live Cosmic rune price chart, daily volume and full history on GrandExchange.com.