Cosmic rune price - OSRS Grand Exchange

Used for enchant spells. The current Old School RuneScape Grand Exchange price of Cosmic rune is approximately 117 gp (buy 120 gp, sell 113 gp).

• Buy (insta-buy) price: 120 gp
• Sell (insta-sell) price: 113 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 109 gp and 136 gp. The price is down 14.1% across that window, moving from about 135 gp to 116 gp, and down 4.9% over the last 7 days. The sharpest single-day move in that stretch was -8.9% on October 21, 2026.

About 443,877,445 units changed hands across those 30 trading days, an average of 14,795,915 per day, so Cosmic rune is currently extremely liquid: offers at fair prices typically fill within minutes.

For flippers, the current spread is 7 gp before tax and about 5 gp per item after the 2% GE tax; a full buy-limit cycle of 18,000 ties up about 2,034,000 gp and can return up to 90,000 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.