Black mask

An inert-seeming cave horror mask.

1.11m gp

↓ 31.0%−500.4k gppast week

Last traded 8m agoActive flip

Updated 24s ago

Black mask is currently trading at 1.11m gp on the Grand Exchange and is down 7.4% 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)

1,289

Buy vol (24h)

460

Sell vol (24h)

829

Instant-buy

1.09m gp

-9.2% vs day open

Instant-sell

1.13m gp

-5.6% vs day open

Tax (2%)

22.7k gp

Flip margin

+20.2k gp

+1.86% vs buy

Profit per flip

+20.2k gp

At limit 70: 1.42m gp / 4h

Buy limit

Performance

Selected:

1D 1W 30D

Open

1.63m gp

1.12m gp

Low

1.08m gp

High

1.66m gp

Performance

-31.28%

Buy volume

6,234

Sell volume

10,068

Buy / sell ratio

0.62

>1 = more buyers than sellers

Avg daily volume

543

Flip viability

Margin: 20.2k gp per flip

Volume: 1,289 trades / 24h

Buy limit: 70 every 4 hours

Max profit/cycle: 1.42m gp

Verdict: High margin with healthy liquidity

Flip summary

Black Mask shows an active flip setup with a margin of +20.2k gp and 1,289 trades over the last 24 hours.

At the buy limit of 70 every four hours, max profit per cycle is about 1.42m gp — high margin with healthy liquidity.

Recent activity (5m buckets)

Time	Buy avg	Buy vol	Sell avg	Sell vol	Margin
8m ago(8/5/2026)	1.09m	2	1.13m	3	42.2k
13m ago(8/5/2026)	—	–	1.13m	4	–
18m ago(8/5/2026)	—	–	1.12m	3	–
23m ago(8/5/2026)	1.10m

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