Rock-shell helm
Protective headwear made from crabs. Better than that sounds.
Rock-shell helm is a members-only item on the OSRS Grand Exchange. Recent trades put the high price at 19,888 GP (4h ago) and the low price at 20,000 GP (2h ago). Buying at the low price and selling at the high price would lose 509 GP per item after the 2% tax (-2.54% of the buy price). You can buy up to 70 every four hours. High Alchemy would make 956 GP per cast if you bought it at the low price and paid for the nature rune. 56 were traded in the last 24 hours.
| High | 19,888 GP () |
|---|---|
| Low | 20,000 GP () |
| Tax | 397 GP |
| Margin | -509 GP |
| ROI | -2.54% |
| Buy limit | 70 every 4 hours |
| High alchemy | 21,120 GP |
Buy price (insta-sell / low): 20,000 GP
Sell price (insta-buy / high): 19,888 GP
Margin after tax: -509 GP per unit. Grand Exchange tax on a sale is 397 GP.
Buy limit: 70 every 4 hours.
The full buy limit of 70 Rock-shell helm costs 1,400,000 GP at the current buy price. Across that quantity, the after-tax margin is -35,630 GP.
- Grand Exchange buy limit: 70 every 4 hours
- Members-only item
- High alchemy value: 21,120 GP
- Low alchemy value: 14,080 GP
- Base value: 35,200 GP
Rock-shell helm price history
- Over the past 7 days, the average high ranged from 24,899 GP to 24,899 GP across 3 hourly samples. From 2026-11-01 UTC to 2026-11-07 UTC, it moved from 24,899 GP to 24,899 GP (0 GP, 0.00%).
- Over the past 30 days, the average high ranged from 19,557 GP to 26,000 GP across 15 hourly samples. From 2026-10-10 UTC to 2026-11-07 UTC, it moved from 24,999 GP to 24,899 GP (-100 GP, -0.40%).
- Over the past 90 days, the average high ranged from 19,557 GP to 29,992 GP across 34 hourly samples. From 2026-08-16 UTC to 2026-11-07 UTC, it moved from 20,121 GP to 24,899 GP (+4,778 GP, +23.75%).
- Over the past 90 days, the highest average high was 29,992 GP on 2026-08-28 UTC, and the lowest was 19,557 GP on 2026-10-13 UTC.
As of 2026-11-07 UTC. See this week's market summary.
To cite this page: QuantScapers, "Rock-shell helm price history", based on OSRS Wiki real-time price data through 2026-11-07 UTC. Calculations by QuantScapers.
What is the Grand Exchange buy limit for Rock-shell helm?
You can buy up to 70 Rock-shell helm every 4 hours on the Grand Exchange.
Is Rock-shell helm a members-only item?
Rock-shell helm is a members-only item and requires OSRS membership to trade.
What is Rock-shell helm's current buy and sell price?
At the latest update, Rock-shell helm's insta-sell (low) price is 20,000 GP and its insta-buy (high) price is 19,888 GP on the Grand Exchange.
How much Grand Exchange tax applies to Rock-shell helm?
A sale of Rock-shell helm pays the standard 2% Grand Exchange tax, which is 397 GP per unit at the current price.
What does a full buy limit of Rock-shell helm cost?
Buying the full limit of 70 Rock-shell helm costs 1,400,000 GP at the current insta-sell price of 20,000 GP each.