Black mask

An inert-seeming cave horror mask.

1.11m gp

↓ 31.0%−498.6k gppast week

Last traded 9m agoActive flip

Updated 1m ago

Black mask is currently trading at 1.11m gp on the Grand Exchange and is down 7.8% over the last 24 hours. Current instant-buy and instant-sell prices are 1.09m gp and 1.13m gp.

Category: other · Members only · View on OSRS Wiki

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About Black Mask

Black Mask is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "An inert-seeming cave horror mask."

It has a Grand Exchange buy limit of 70 every four hours, a high alchemy value of 1.8k gp, and item ID 8921.

View on OSRS Wiki

Live statistics

Market price

1.11m gp

Volume (24h)

1,300

Buy vol (24h)

459

Sell vol (24h)

841

Instant-buy

1.09m gp

-9.2% vs day open

Instant-sell

1.13m gp

-6.4% vs day open

Tax (2%)

22.5k gp

Flip margin

+10.6k gp

+0.97% vs buy

Profit per flip

+10.6k gp

At limit 70: 741.8k gp / 4h

Buy limit

Performance

Selected:

1D 1W 30D

Open

1.61m gp

1.11m gp

Low

1.08m gp

High

1.66m gp

Performance

-30.76%

Buy volume

2,747

Sell volume

5,134

Buy / sell ratio

0.54

>1 = more buyers than sellers

Avg daily volume

1,126

Flip viability

Margin: 10.6k gp per flip

Volume: 1,300 trades / 24h

Buy limit: 70 every 4 hours

Max profit/cycle: 741.8k gp

Verdict: High margin with healthy liquidity

Flip summary

Black Mask shows an active flip setup with a margin of +10.6k gp and 1,300 trades over the last 24 hours.

At the buy limit of 70 every four hours, max profit per cycle is about 741.8k gp — high margin with healthy liquidity.

Recent activity (5m buckets)

Time	Buy avg	Buy vol	Sell avg	Sell vol	Margin
9m ago(8/5/2026)	—	–	1.13m	10	–
14m ago(8/5/2026)	1.09m	2	1.13m	2	36.3k
19m ago(8/5/2026)	—	–	1.13m	5	–
24m ago(8/5/2026)	1.09m

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