Black mask

Members

Set price alert Open in terminal →

Black mask trades around 882k gp now, -18.1% this week, 7-day range 867k–1.11m.

Lowlast instant sell

864,265

Highlast instant buy

900,000

Flippers place a buy offer near the low and sell near the high.

Flip margin: +17,735; per item, after 18,000 tax
Flip profit / 4h: 195k; Buy 11 · spend 9.51m (your bankroll)
Buy limit: 70; per 4 hours
Traded, 24h: 753; both sides
Margin held: 82%; of the last 24h, steady
High alch: 1,800; shop value 3,000

How these numbers work

Sell offer (last insta-buy)900,000

Buy offer (last insta-sell)− 864,265

GE tax, 2% capped at 5m− 18,000

Net margin per item+17,735

Breakeven sell price≥ 881,904

Potential profit, one 4h window

Buy limit70

10% of 4h volume17

10m bankroll ÷ buy11

Quantity (the lowest)× 11

Spend9,506,915

Potential profit195,085

All armour →Top flips →

About Black mask on the GE

“An inert-seeming cave horror mask.”

Black mask last traded at 900,000 gp (insta-buy) and 864,265 gp (insta-sell) on the Grand Exchange. After the GE tax on a sale, that leaves a margin of 17,735 gp per item. 753 were traded in the last 24 hours. It is a members' item.

Looking for a flip? See today's best →

Prices assume you place offers and wait for them to fill. Insta-buying and insta-selling pays the spread twice.
Selling below the breakeven price loses money, even if it is above what you paid.
4h volume is 179 items (45/hr, pace over the last 2 hours). Sized to a 10m bankroll; set yours on the home page.

Last 7 days

-18.1% vs 7 days ago

Avg / day: 786
7d low: 867k gp
7d high: 1.11m gp

Hourly mid price, the average of the buy and sell prices. Volume counts both sides.

Price & volume

When it trades

Times in UTC (game time)

Bar height is trading volumecheapestpriciest

By hour of day

By weekday

230k gp

Guthan's helm238k gp

Verac's helm198k gp

Black mask price history

All-time high: 1,843,718 gp; 21 Jan 2019
All-time low: 412,275 gp; 22 Sept 2016
30 days: +5.4%
90 days: -39.0%
1 year: +50.2%

Monthly close in gp (last guide price of each month)

663kNov 25
784kDec 25
791kJan 26
875kFeb 26
1.04mMar 26
1.14mApr 26
1.21mMay 26
1.51mJun 26
1.59mJul 26
929kAug 26
1.28mSept 26
887kOct 26

Daily GE guide prices from 28 Mar 2015 to 11 Oct 2026, from the OSRS Wiki. Data as of 11 Oct 2026.

Tax: Selling one at 900,000 gp costs 18,000 gp in tax (2% of the sale price, rounded down, capped at 5m gp). Tax-exempt items →

Black mask on the OSRS Wiki ↗

Black mask FAQ

How much is Black mask worth?

Black mask last sold for 864,265 gp (instant sell) and was last bought for 900,000 gp (instant buy) on the Grand Exchange.

What is the Black mask buy limit?

You can buy 70 Black mask every 4 hours. The 4 hours start from your first purchase, and only buying counts towards the limit.

Is Black mask worth high alching?

High alchemy turns Black mask into 1,800 gp. Buying one at 900,000 gp and casting with a nature rune at 137 gp costs 900,137 gp. That is a loss of 898,337 gp per cast at the latest prices, so it is not worth alching for profit right now.

Is Black mask tax-exempt?

No. Selling one at 900,000 gp costs 18,000 gp in tax (2% of the sale price, rounded down, capped at 5m gp).

What was Black mask's highest price?

The highest daily guide price on record for Black mask is 1,843,718 gp, on 21 Jan 2019. The lowest is 412,275 gp, on 22 Sept 2016.

Related items

About Black mask on the GE

Last 7 days

Black mask price history

Black mask FAQ