131gp
130gp
1gp
-1gp
—
—
Price history
1 points · hover for detail
Volume · units traded
- 30D low
- 130
- 30D high
- 131
- Volatility
- 0.8%
Flip calculator
Includes the 2% Grand Exchange tax
-1gp
-1 per item · -0.77% ROI
Tax puts break-even at 132 gp.
- Capital required
- 130 gp
- Gross revenue
- 131 gp
- GE tax (2%, 2/item)
- − 2 gp
- Break-even sell
- 132 gp
Item data
- High alchemy
- 30 gp77.1% below market
- Low alchemy
- 20 gp
- Shop value
- 50 gp
- Weight
- 0 kg
- Requires
- Runecraft 27
- Stack / note
- Stackable · not noteable
- Released
- May 24, 2001
About Cosmic rune
The Cosmic rune is a free-to-play rune in Old School RuneScape.
"Used for enchant spells"
Over the last 30 days it traded between 118 and 135 gp on the Grand Exchange, averaging 123 gp. About 12,035,140 units changed hands per day. The price is up 6.6% across that window. The Grand Exchange buy limit is 18,000 every 4 hours. Selling one at the average price costs 2 gp in Grand Exchange tax.
Casting High Level Alchemy returns 30 gp, which is 75.6% below the 30-day average price, so alching a bought one loses money.
How to get Cosmic rune
92 monsters drop Cosmic rune, most commonly Adventurer Jon (Always), Lundail (1/7) and Intricate pouch (5/45). 5 shops sell it, including Lundail's Arena-side Rune Shop and Amlodd's Magical Supplies. It can be made from Pure essence.
Dropped by
| Monster | Rarity | Quantity |
|---|---|---|
| Adventurer Jon | Always | 35 |
| Lundail | 1/7 | 40 |
| Intricate pouch | 5/45 | 200–300 |
| Chest (Obor's lair) | 12/118 | 60–119 |
| Coffin (Hallowed Sepulchre) | 1/10 | 60–100 |
| Essence impling | 1/10 | 4 |
| Essence impling jar | 1/10 | 4 |
| Hallowed sack | 1/10 | 60–100 |
| Crystal chest | 12/128 | 10 |
| Gang boss | 20/256 | 30–60 |
| Gangster | 20/256 | 30–60 |
| Zombie (Sepulchre of Death) | 20/256 | 5 |
| Tortured gorilla | 76/1,000 | 20–30 |
| Rewards Guardian | 10/140 | 20–30 |
| Shadow warrior | 9/128 | 3 |
| Elven Crystal Chest | 17/256 | 50–100 |
| Sergeant Grimspike | 8/127 | 25–30 |
| Sergeant Steelwill | 8/127 | 25–30 |
| Sergeant Strongstack | 8/127 | 25–30 |
| Ancient Zygomite | 6/118 | 15 |
72 further monsters drop it less commonly.
Sold in shops
| Shop | Price | Stock |
|---|---|---|
| Lundail's Arena-side Rune Shop | 50 gp | 20 |
| Amlodd's Magical Supplies | 50 gp | 250 |
| Tal Teklan Rune Shop | 50 gp | 30 |
| Ali's Discount Wares | 62 gp | 10 |
| Durrik's Goods | 125 gp | 10 |
Recipes
Where this item appears in crafting and processing.
Made from
- 1× Pure essence
Used to make
- 1× Abyssal bracelet(5) from 1× Diamond bracelet, 1× Cosmic rune, 10× Earth rune
- 1× Air orb from 1× Unpowered orb, 30× Air rune, 3× Cosmic rune
- 1× Amulet of bounty from 1× Opal amulet, 1× Cosmic rune, 1× Water rune
- 1× Amulet of chemistry from 1× Jade amulet, 1× Cosmic rune, 3× Air rune
- 1× Amulet of defence from 1× Emerald amulet, 1× Cosmic rune, 3× Air rune
- 1× Amulet of fury from 1× Onyx amulet, 1× Cosmic rune, 20× Fire rune, 20× Earth rune
- 1× Amulet of glory from 1× Dragonstone amulet, 1× Cosmic rune, 15× Water rune, 15× Earth rune
- 1× Amulet of magic from 1× Sapphire amulet, 1× Cosmic rune, 1× Water rune
- 1× Amulet of nature from 1× Pre-nature amulet, 1× Cosmic rune, 3× Air rune
- 1× Amulet of power from 1× Diamond amulet, 1× Cosmic rune, 10× Earth rune
Cosmic rune appears in 74 recipes in total.
Cosmic rune price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 124 | 118 | 131 | 170,282,000 |
| September 2026 | 121 | 116 | 135 | 308,406,454 |
| August 2026 | 123 | 118 | 131 | 333,569,135 |
| July 2026 | 116 | 108 | 124 | 350,410,429 |
| June 202621d | 110 | 106 | 116 | 137,552,448 |
| May 20262d | 102 | 95 | 109 | 14,251,404 |
| April 20261d | 94 | 94 | 94 | 6,109,013 |
| March 2026 | 98 | 94 | 103 | 78,045,687 |
| February 2026 | 95 | 91 | 96 | 8,684,405 |
| January 2026 | 80 | 57 | 97 | 17,856 |
Across 10 months of recorded prices Cosmic rune ranged from 57 gp in January 2026 to 135 gp in September 2026, measured over 218 trading days.
The 30-day average of 123 gp sits in the upper third of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.
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