3,319,997gp
3,318,000gp
1,997gp
-64,402gp
—
—
Price history
1 points · hover for detail
- 30D low
- 3,318,000
- 30D high
- 3,319,997
- Volatility
- 0.1%
Flip calculator
Includes the 2% Grand Exchange tax
-64,402gp
-64,402 per item · -1.94% ROI
Tax puts break-even at 3,385,714 gp.
- Capital required
- 3,318,000 gp
- Gross revenue
- 3,319,997 gp
- GE tax (2%, 66,399/item)
- − 66,399 gp
- Break-even sell
- 3,385,714 gp
Item data
- High alchemy
- 27,000 gp99.2% below market
- Low alchemy
- 18,000 gp
- Shop value
- 45,000 gp
- Weight
- 0.05 kg
- Stack / note
- Not stackable · noteable
- Released
- Aug 27, 2015
About Eternal crystal
The Eternal crystal is a members-only item in Old School RuneScape.
"A powerful crystal of magic"
Over the last 30 days it traded between 3,113,696 and 3,791,794 gp on the Grand Exchange, averaging 3,305,461 gp. About 92 units changed hands per day. The price is up 12.2% across that window. The Grand Exchange buy limit is 15 every 4 hours. Selling one at the average price costs 66,109 gp in Grand Exchange tax.
Casting High Level Alchemy returns 27,000 gp, which is 99.2% below the 30-day average price, so alching a bought one loses money.
How to get Eternal crystal
Only Cerberus (1/520) drops Eternal crystal.
Dropped by
| Monster | Rarity | Quantity |
|---|---|---|
| Cerberus | 1/520 | 1 |
Recipes
Where this item appears in crafting and processing.
Used to make
- 1× Eternal boots from 1× Infinity boots, 1× Eternal crystal
Eternal crystal price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 3,305,982 | 3,113,696 | 3,520,407 | 1,207 |
| September 2026 | 3,212,127 | 2,975,826 | 3,791,794 | 2,563 |
| August 2026 | 3,146,573 | 2,761,999 | 3,883,366 | 3,178 |
| July 2026 | 3,071,716 | 2,768,120 | 3,435,507 | 4,440 |
| June 202621d | 3,269,815 | 3,001,517 | 3,568,997 | 5,356 |
| May 20262d | 4,026,553 | 3,720,695 | 4,332,410 | 182 |
| April 20261d | 4,188,309 | 4,188,309 | 4,188,309 | 46 |
| March 2026 | 4,753,822 | 4,346,976 | 5,251,310 | 17,435 |
| February 2026 | 5,054,119 | 4,512,773 | 5,621,128 | 16,212 |
| January 2026 | 5,210,633 | 4,297,077 | 6,358,474 | 17,856 |
Across 10 months of recorded prices Eternal crystal ranged from 2,761,999 gp in August 2026 to 6,358,474 gp in January 2026, measured over 218 trading days.
The 30-day average of 3,305,461 gp sits in the lower third of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.
