39,990gp
28,673gp
11,317gp
+10,518gp
—
—
Price history
1 points · hover for detail
- 30D low
- 28,673
- 30D high
- 39,990
- Volatility
- 33.0%
Flip calculator
Includes the 2% Grand Exchange tax
+10,518gp
+10,518 per item · +36.68% ROI
- Capital required
- 28,673 gp
- Gross revenue
- 39,990 gp
- GE tax (2%, 799/item)
- − 799 gp
- Break-even sell
- 29,258 gp
Item data
- High alchemy
- 2,400 gp94.0% below market
- Low alchemy
- 1,600 gp
- Shop value
- 4,000 gp
- Weight
- 0.8 kg
- Skill / type
- Head
- Stack / note
- Not stackable · noteable
- Released
- Jul 6, 2016
About Black demon mask
The Black demon mask is a members-only piece of equipment in Old School RuneScape.
"Evil"
Over the last 30 days it traded between 14,858 and 28,387 gp on the Grand Exchange, averaging 22,109 gp. About 52 units changed hands per day. The price is down 39.7% across that window. The Grand Exchange buy limit is 4 every 4 hours. Selling one at the average price costs 442 gp in Grand Exchange tax.
Casting High Level Alchemy returns 2,400 gp, which is 89.1% below the 30-day average price, so alching a bought one loses money.
How to get Black demon mask
Only Reward casket (master) (1/851) drops Black demon mask.
Dropped by
| Monster | Rarity | Quantity |
|---|---|---|
| Reward casket (master) | 1/851 | 1 |
Black demon mask price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 22,394 | 15,675 | 28,387 | 616 |
| September 2026 | 22,069 | 13,840 | 33,799 | 1,425 |
| August 2026 | 17,086 | 11,783 | 28,116 | 1,462 |
| July 2026 | 22,445 | 14,102 | 32,732 | 1,485 |
| June 202621d | 23,294 | 16,142 | 30,037 | 3,805 |
| May 20262d | 21,099 | 17,943 | 24,254 | 68 |
| April 20261d | 18,624 | 18,624 | 18,624 | 38 |
| March 2026 | 30,919 | 20,586 | 40,838 | 16,725 |
| February 2026 | 38,947 | 34,405 | 44,005 | 16,143 |
| January 2026 | 39,687 | 23,103 | 95,128 | 16,434 |
Across 10 months of recorded prices Black demon mask ranged from 11,783 gp in August 2026 to 95,128 gp in January 2026, measured over 218 trading days.
The 30-day average of 22,109 gp sits in the lower third of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.
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