Black mask (10)

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Black mask (10) trades around 833k gp now, -18.7% this week, 7-day range 844k–1.04m.

Lowlast instant sell

817,944

Highlast instant buy

849,000

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

Flip margin: +14,076; per item, after 16,980 tax
Flip profit / 4h: 141k; Buy 10 · spend 8.18m (10% vol)
Buy limit: 70; per 4 hours
Traded, 24h: 431; both sides
Reliability: 91%; of the last 24h, steady
High alch: 1,800; shop value 3,000

How these numbers work

Sell offer (last insta-buy)849,000

Buy offer (last insta-sell)− 817,944

GE tax, 2% capped at 5m− 16,980

Net margin per item+14,076

Breakeven sell price≥ 834,637

Potential profit, one 4h window

Buy limit70

10% of 4h volume10

10m bankroll ÷ buy12

Quantity (the lowest)× 10

Spend8,179,440

Potential profit140,760

All armour →Top flips →

About Black mask (10) on the GE

“A magic cave horror mask.”

Black mask (10) last traded at 849,000 gp (insta-buy) and 817,944 gp (insta-sell) on the Grand Exchange. After the GE tax on a sale, that leaves a margin of 14,076 gp per item. 431 were traded in the last 24 hours. It is a members' item.

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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 102 items (26/hr, pace over the last 2 hours). Sized to a 10m bankroll; set yours on the home page.

Last 7 days

-18.7% vs 7 days ago

Avg / day: 455
7d low: 844k gp
7d high: 1.04m 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

226k gp

Guthan's helm224k gp

Verac's helm186k gp

Black mask (10) price history

All-time high: 1,833,720 gp; 22 Jan 2019
All-time low: 414,243 gp; 14 Nov 2015
30 days: +2.2%
90 days: -40.3%
1 year: +47.9%

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

638kNov 25
753kDec 25
789kJan 26
848kFeb 26
1.02mMar 26
1.1mApr 26
1.19mMay 26
1.47mJun 26
1.53mJul 26
906kAug 26
1.21mSept 26
857kOct 26

Daily GE guide prices from 7 Mar 2015 to 11 Oct 2026, from the OSRS Wiki. Data as of 11 Oct 2026.

Tax: Selling one at 849,000 gp costs 16,980 gp in tax (2% of the sale price, rounded down, capped at 5m gp). Tax-exempt items →

Black mask (10) on the OSRS Wiki ↗

Black mask (10) FAQ

How much is Black mask (10) worth?

Black mask (10) last sold for 817,944 gp (instant sell) and was last bought for 849,000 gp (instant buy) on the Grand Exchange.

What is the Black mask (10) buy limit?

You can buy 70 Black mask (10) every 4 hours. The 4 hours start from your first purchase, and only buying counts towards the limit.

Is Black mask (10) worth high alching?

High alchemy turns Black mask (10) into 1,800 gp. Buying one at 849,000 gp and casting with a nature rune at 138 gp costs 849,138 gp. That is a loss of 847,338 gp per cast at the latest prices, so it is not worth alching for profit right now.

Is Black mask (10) tax-exempt?

No. Selling one at 849,000 gp costs 16,980 gp in tax (2% of the sale price, rounded down, capped at 5m gp).

What was Black mask (10)'s highest price?

The highest daily guide price on record for Black mask (10) is 1,833,720 gp, on 22 Jan 2019. The lowest is 414,243 gp, on 14 Nov 2015.

Related items

About Black mask (10) on the GE

Last 7 days

Black mask (10) price history

Black mask (10) FAQ