Blamish blue shell (round)
A large blue coloured blamish snail shell, looks protective.
Blamish blue shell (round) is a members-only item on the OSRS Grand Exchange. The latest high price is 10,000 GP (7h ago) and the low price is 2,862 GP (1h ago). Buying at the low price and selling at the high price would leave 6,938 GP per item after the 2% tax (242.42% of the buy price). You can buy up to 13,000 every four hours. Buying one at the low price and casting High Alchemy with a nature rune would lose 2,938 GP. 211 were traded in the last 24 hours.
| High | 10,000 GP () |
|---|---|
| Low | 2,862 GP () |
| Tax | 200 GP |
| Margin | 6,938 GP |
| ROI | 242.42% |
| Buy limit | 13,000 every 4 hours |
| High alchemy | 90 GP |
Buy price (insta-sell / low): 2,862 GP
Sell price (insta-buy / high): 10,000 GP
Margin after tax: 6,938 GP per unit. Grand Exchange tax on a sale is 200 GP.
Buy limit: 13,000 every 4 hours.
The full buy limit of 13,000 Blamish blue shell (round) costs 37,206,000 GP at the current buy price. Across that quantity, the after-tax margin is 90,194,000 GP.
- Grand Exchange buy limit: 13,000 every 4 hours
- Members-only item
- High alchemy value: 90 GP
- Low alchemy value: 60 GP
- Base value: 150 GP
Blamish blue shell (round) price history
- Over the past 7 days, the average high ranged from 2,196 GP to 5,132 GP across 15 hourly samples. From 2026-11-01 UTC to 2026-11-08 UTC, it moved from 2,835 GP to 3,477 GP (+642 GP, +22.65%).
- Over the past 30 days, the average high ranged from 2,092 GP to 21,000 GP across 75 hourly samples. From 2026-10-10 UTC to 2026-11-08 UTC, it moved from 8,732 GP to 3,477 GP (-5,255 GP, -60.18%).
- Over the past 90 days, the average high ranged from 2,055 GP to 42,000 GP across 252 hourly samples. From 2026-08-11 UTC to 2026-11-08 UTC, it moved from 3,073 GP to 3,477 GP (+404 GP, +13.15%).
- Over the past 90 days, the highest average high was 42,000 GP on 2026-09-09 UTC, and the lowest was 2,055 GP on 2026-10-06 UTC.
As of 2026-11-08 UTC. See this week's market summary.
To cite this page: QuantScapers, "Blamish blue shell (round) 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 Blamish blue shell (round)?
You can buy up to 13,000 Blamish blue shell (round) every 4 hours on the Grand Exchange.
Is Blamish blue shell (round) a members-only item?
Blamish blue shell (round) is a members-only item and requires OSRS membership to trade.
What is Blamish blue shell (round)'s current buy and sell price?
At the latest update, Blamish blue shell (round)'s insta-sell (low) price is 2,862 GP and its insta-buy (high) price is 10,000 GP on the Grand Exchange.
How much Grand Exchange tax applies to Blamish blue shell (round)?
A sale of Blamish blue shell (round) pays the standard 2% Grand Exchange tax, which is 200 GP per unit at the current price.
What does a full buy limit of Blamish blue shell (round) cost?
Buying the full limit of 13,000 Blamish blue shell (round) costs 37,206,000 GP at the current insta-sell price of 2,862 GP each.