Black mask (10)
A magic cave horror mask.
Black mask (10) is a members-only item on the OSRS Grand Exchange. The latest high price is 933,752 GP (2m ago) and the low price is 926,123 GP (19m ago). Buying at the low price and selling at the high price would lose 11,046 GP per item after the 2% tax (-1.19% of the buy price). You can buy up to 70 every four hours. Buying one at the low price and casting High Alchemy with a nature rune would lose 924,487 GP. 373 were traded in the last 24 hours.
| High | 933,752 GP () |
|---|---|
| Low | 926,123 GP () |
| Tax | 18,675 GP |
| Margin | -11,046 GP |
| ROI | -1.19% |
| Buy limit | 70 every 4 hours |
| High alchemy | 1,800 GP |
Buy price (insta-sell / low): 926,123 GP
Sell price (insta-buy / high): 933,752 GP
Margin after tax: -11,046 GP per unit. Grand Exchange tax on a sale is 18,675 GP.
Buy limit: 70 every 4 hours.
The full buy limit of 70 Black mask (10) costs 64,828,610 GP at the current buy price. Across that quantity, the after-tax margin is -773,220 GP.
- Grand Exchange buy limit: 70 every 4 hours
- Members-only item
- High alchemy value: 1,800 GP
- Low alchemy value: 1,200 GP
- Base value: 3,000 GP
Black mask (10) price history
- Over the past 7 days, the average high ranged from 875,000 GP to 980,000 GP across 80 hourly samples. From 2026-11-01 UTC to 2026-11-08 UTC, it moved from 926,487 GP to 944,964 GP (+18,477 GP, +1.99%).
- Over the past 30 days, the average high ranged from 738,455 GP to 1,099,669 GP across 347 hourly samples. From 2026-10-09 UTC to 2026-11-08 UTC, it moved from 918,728 GP to 944,964 GP (+26,236 GP, +2.86%).
- Over the past 90 days, the average high ranged from 715,641 GP to 1,348,120 GP across 925 hourly samples. From 2026-08-10 UTC to 2026-11-08 UTC, it moved from 912,742 GP to 944,964 GP (+32,222 GP, +3.53%).
- Over the past 90 days, the highest average high was 1,348,120 GP on 2026-09-29 UTC, and the lowest was 715,641 GP on 2026-08-19 UTC.
As of 2026-11-08 UTC. See this week's market summary.
To cite this page: QuantScapers, "Black mask (10) 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 Black mask (10)?
You can buy up to 70 Black mask (10) every 4 hours on the Grand Exchange.
Is Black mask (10) a members-only item?
Black mask (10) is a members-only item and requires OSRS membership to trade.
What is Black mask (10)'s current buy and sell price?
At the latest update, Black mask (10)'s insta-sell (low) price is 926,123 GP and its insta-buy (high) price is 933,752 GP on the Grand Exchange.
How much Grand Exchange tax applies to Black mask (10)?
A sale of Black mask (10) pays the standard 2% Grand Exchange tax, which is 18,675 GP per unit at the current price.
What does a full buy limit of Black mask (10) cost?
Buying the full limit of 70 Black mask (10) costs 64,828,610 GP at the current insta-sell price of 926,123 GP each.