Black mask
An inert-seeming cave horror mask.
- Buy at (instant-sell)
- 927,129
- Sell at (instant-buy)
- 960,920
- GE tax on sale
- 19,218
- Margin
- 14,573
- ROI
- 1.6%
- Buy limit (4h)
- 70
- Potential profit
- 1,020,110
- Last buy seen
- Last sell seen
- Item ID
- 8921
- Members
- yes
- High alch
- 1,800
- Low alch
- 1,200
- Base value
- 3,000
- High alch profit
- -959,257
- Low alch profit
- -959,857
- 1 hour
- +0.7%
- 24 hours
- +1.0%
- 7 days
- +1.1%
- 30 days
- +24.0%
- Traded (24h, our archive)
- 601
- Upstream /volumes figure
- 986
- The upstream /volumes endpoint is undocumented and does not agree with the 24-hour bucket totals, so the two volume figures are shown separately rather than blended into one number.
- Some items share a connected buy limit with their other dose or charge variants — prayer potions, for instance, draw on one pool across all four doses. The API does not publish those connections, so the limit shown here is the per-item figure and may overstate what you can actually buy.
The lowest price someone is selling at nowThe highest price someone is buying at now2% of the sale price, capped at 5,000,000 gpThe item's value in the game's own definitions. Alchemy and general-store rates derive from it; it is not a price any shop necessarily charges.High alch value minus a nature rune minus the buy price, assuming a fire staff. No GE tax: alching is not a Grand Exchange sale.Low alch value minus a nature rune minus the buy price, assuming a fire staff. No GE tax: alching is not a Grand Exchange sale.From the wiki's undocumented /volumes endpoint, as at 2026-09-21T04:46:34Z