Diabolic worms
Their subtle, pulsing glow would be great for catching anglerfish.
Diabolic worms is a members-only item on the OSRS Grand Exchange. The latest high price is 1,776 GP (9m ago) and the low price is 1,700 GP (1m ago). Buying at the low price and selling at the high price would leave 41 GP per item after the 2% tax (2.41% of the buy price). You can buy up to 8,000 every four hours. Buying one at the low price and casting High Alchemy with a nature rune would lose 1,810 GP. 265,750 were traded in the last 24 hours.
| High | 1,776 GP () |
|---|---|
| Low | 1,700 GP () |
| Tax | 35 GP |
| Margin | 41 GP |
| ROI | 2.41% |
| Buy limit | 8,000 every 4 hours |
| High alchemy | 54 GP |
Buy price (insta-sell / low): 1,700 GP
Sell price (insta-buy / high): 1,776 GP
Margin after tax: 41 GP per unit. Grand Exchange tax on a sale is 35 GP.
Buy limit: 8,000 every 4 hours.
The full buy limit of 8,000 Diabolic worms costs 13,600,000 GP at the current buy price. Across that quantity, the after-tax margin is 328,000 GP.
- Grand Exchange buy limit: 8,000 every 4 hours
- Members-only item
- High alchemy value: 54 GP
- Low alchemy value: 36 GP
- Base value: 90 GP
Diabolic worms price history
- Over the past 7 days, the average high ranged from 1,489 GP to 1,829 GP across 39 hourly samples. From 2026-11-01 UTC to 2026-11-08 UTC, it moved from 1,489 GP to 1,829 GP (+340 GP, +22.83%).
- Over the past 30 days, the average high ranged from 1,388 GP to 2,335 GP across 181 hourly samples. From 2026-10-09 UTC to 2026-11-08 UTC, it moved from 1,747 GP to 1,829 GP (+82 GP, +4.69%).
- Over the past 90 days, the average high ranged from 1,388 GP to 4,837 GP across 554 hourly samples. From 2026-08-10 UTC to 2026-11-08 UTC, it moved from 2,926 GP to 1,829 GP (-1,097 GP, -37.49%).
- Over the past 90 days, the highest average high was 4,837 GP on 2026-08-11 UTC, and the lowest was 1,388 GP on 2026-10-26 UTC.
As of 2026-11-08 UTC. See this week's market summary.
To cite this page: QuantScapers, "Diabolic worms price history", based on OSRS Wiki real-time price data through 2026-11-08 UTC. Calculations by QuantScapers.
What is the Grand Exchange buy limit for Diabolic worms?
You can buy up to 8,000 Diabolic worms every 4 hours on the Grand Exchange.
Is Diabolic worms a members-only item?
Diabolic worms is a members-only item and requires OSRS membership to trade.
What is Diabolic worms's current buy and sell price?
At the latest update, Diabolic worms's insta-sell (low) price is 1,700 GP and its insta-buy (high) price is 1,776 GP on the Grand Exchange.
How much Grand Exchange tax applies to Diabolic worms?
A sale of Diabolic worms pays the standard 2% Grand Exchange tax, which is 35 GP per unit at the current price.
What does a full buy limit of Diabolic worms cost?
Buying the full limit of 8,000 Diabolic worms costs 13,600,000 GP at the current insta-sell price of 1,700 GP each.