Diabolic worms
Their subtle, pulsing glow would be great for catching anglerfish.
1,825gp
1,786gp
39gp
+3gp
—
—
Price history
1 points · hover for detail
Volume · units traded
- 30D low
- 1,786
- 30D high
- 1,825
- Volatility
- 2.2%
Flip calculator
Includes the 2% Grand Exchange tax
+3gp
+3 per item · +0.17% ROI
- Capital required
- 1,786 gp
- Gross revenue
- 1,825 gp
- GE tax (2%, 36/item)
- − 36 gp
- Break-even sell
- 1,822 gp
Item data
- High alchemy
- 54 gp97.0% below market
- Low alchemy
- 36 gp
- Shop value
- 90 gp
- Weight
- 0 kg
- Stack / note
- Not stackable · not noteable
- Released
- May 14, 2025
About Diabolic worms
Diabolic worms are a members-only item in Old School RuneScape.
"Their subtle, pulsing glow would be great for catching anglerfish"
Over the last 30 days they traded between 1,611 and 2,542 gp on the Grand Exchange, averaging 2,051 gp. About 284,012 units changed hands per day. The price is down 18.2% across that window. The Grand Exchange buy limit is 8,000 every 4 hours. Selling one at the average price costs 41 gp in Grand Exchange tax.
Casting High Level Alchemy returns 54 gp, which is 97.4% below the 30-day average price, so alching a bought one loses money.
How to get Diabolic worms
Only Yama (Always) drops Diabolic worms.
Dropped by
| Monster | Rarity | Quantity |
|---|---|---|
| Yama | Always | 250 |
Diabolic worms price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 1,786 | 1,611 | 1,921 | 3,940,723 |
| September 2026 | 2,287 | 1,931 | 2,640 | 7,433,913 |
| August 2026 | 2,603 | 2,163 | 3,524 | 10,124,393 |
| July 2026 | 2,347 | 2,056 | 2,645 | 11,196,363 |
| June 202621d | 2,255 | 2,080 | 2,571 | 4,881,566 |
| May 20262d | 2,428 | 2,019 | 2,836 | 389,903 |
| April 20261d | 2,827 | 2,827 | 2,827 | 97,894 |
| March 2026 | 2,110 | 1,901 | 2,582 | 3,113,084 |
| February 2026 | 2,079 | 1,924 | 2,327 | 243,780 |
| January 2026 | 1,869 | 1,598 | 2,231 | 17,856 |
Across 10 months of recorded prices Diabolic worms ranged from 1,598 gp in January 2026 to 3,524 gp in August 2026, measured over 218 trading days.
The 30-day average of 2,051 gp sits in the lower third of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.