Black knife

Members

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Black knife trades around 44 gp now, -35.5% this week, 7-day range 37–67.

Lowlast instant sell

38

Highlast instant buy

49

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

Flip margin: +11; per item, after 0 tax
Flip profit / 4h: 55,066; Buy 5,006 · spend 190k (10% vol)
Buy limit: 7,000; per 4 hours
Traded, 24h: 115,164; both sides
Reliability: 87%; of the last 24h, steady
High alch: 11; shop value 19

How these numbers work

Sell offer (last insta-buy)49

Buy offer (last insta-sell)− 38

GE tax, 2% capped at 5mexempt

Net margin per item+11

Breakeven sell price≥ 39

Potential profit, one 4h window

Buy limit7,000

10% of 4h volume5,006

10m bankroll ÷ buy263,157

Quantity (the lowest)× 5,006

Spend190,228

Potential profit

All ammunition →Top flips →

About Black knife on the GE

“A finely balanced throwing knife.”

Black knife last traded at 49 gp (insta-buy) and 38 gp (insta-sell) on the Grand Exchange. That leaves a margin of 11 gp per item, with no GE tax at this price. 115,164 were traded in the last 24 hours. It is a members' item.

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55,066

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 50,064 items (12,516/hr, pace over the last 2 hours). Sized to a 10m bankroll; set yours on the home page.

Last 7 days

-35.5% vs 7 days ago

Avg / day: 99,601
7d low: 37 gp
7d high: 67 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

Mithril knife220 gp

Black dart(p++)64 gp

Black knife price history

All-time high: 137 gp; 20 Nov 2015
All-time low: 30 gp; 14 May 2021
30 days: +22.5%
90 days: +36.1%
1 year: +2.1%

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

52Nov 25
46Dec 25
42Jan 26
39Feb 26
40Mar 26
43Apr 26
41May 26
42Jun 26
35Jul 26
40Aug 26
45Sept 26
49Oct 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 49 gp costs no tax. Items selling under 50 gp pay none, because 2% of the price rounds down to 0 gp. Tax-exempt items →

Black knife on the OSRS Wiki ↗

Black knife FAQ

How much is Black knife worth?

Black knife last sold for 38 gp (instant sell) and was last bought for 49 gp (instant buy) on the Grand Exchange.

What is the Black knife buy limit?

You can buy 7,000 Black knife every 4 hours. The 4 hours start from your first purchase, and only buying counts towards the limit.

Is Black knife worth high alching?

High alchemy turns Black knife into 11 gp. Buying one at 49 gp and casting with a nature rune at 138 gp costs 187 gp. That is a loss of 176 gp per cast at the latest prices, so it is not worth alching for profit right now.

Is Black knife tax-exempt?

It is not on the exempt list, but it pays no tax at its price. Selling one at 49 gp costs no tax. Items selling under 50 gp pay none, because 2% of the price rounds down to 0 gp.

What was Black knife's highest price?

The highest daily guide price on record for Black knife is 137 gp, on 20 Nov 2015. The lowest is 30 gp, on 14 May 2021.

Related items

About Black knife on the GE

Last 7 days

Black knife price history

Black knife FAQ