Black knife

A finely balanced throwing knife.

MembersBuy limit 7,000WeaponsWeaponStackable

Wiki

Insta-buyHighest recent buy

42gp

Insta-sellLowest recent sell

40gp

SpreadBefore tax

2gp

5.00%

MarginAfter 2% GE tax

+2gp

+5.00% ROI

VolumeTraded in 30D

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TrendMid price, 30D

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Price history

1 points · hover for detail

Insta-buy (high)Insta-sell (low)Spread

Volume · units traded

30D low: 40
30D high: 42
Volatility: 4.9%

Flip calculator

Includes the 2% Grand Exchange tax

Buy at

Sell at

Quantity

units

Net profitProfitable

+2gp

+2 per item · +5.00% ROI

Capital required: 40 gp
Gross revenue: 42 gp
GE tax (2%, 0/item): − 0 gp
Break-even sell: 40 gp

Item data

High alchemy: 11 gp73.8% below market
Low alchemy: 7 gp
Shop value: 19 gp
Weight: 0 kg
Skill / type: Ranged
Combat: Ranged · Thrown · 3 ticks
Stack / note: Stackable · not noteable
Released: Apr 14, 2003

About Black knife

The Black knife is a members-only weapon in Old School RuneScape.

"A finely balanced throwing knife"

Over the last 30 days it traded between 38 and 60 gp on the Grand Exchange, averaging 43 gp. About 91,467 units changed hands per day. The price is up 53.8% across that window. The Grand Exchange buy limit is 7,000 every 4 hours.

Casting High Level Alchemy returns 11 gp, which is 74.4% below the 30-day average price, so alching a bought one loses money.

How to get Black knife

6 monsters drop Black knife, most commonly Cyclops (16/100), Cyclops (Catacombs of Kourend) (16/100) and Cyclops (God Wars Dungeon) (16/100).

Dropped by

Monster	Rarity	Quantity
Cyclops	16/100	4–13
Cyclops (Catacombs of Kourend)	16/100	4–13
Cyclops (God Wars Dungeon)	16/100	4–13
Soldier (Burthorpe)	13/128	6
Ankou	1/100	1
Shadow warrior	1/128	1

Black knife price history

Daily averages rolled up per month, newest first.

Monthly average, low and high price of Black knife on the Grand Exchange
Month	Average	Low	High	Volume
October 202612d	45	38	60	1,167,221
September 2026	42	36	48	2,459,645
August 2026	44	35	62	2,918,090
July 2026	38	32	98	2,576,137
June 202621d	42	36	73	1,269,816
May 20262d	41	39	42	103,845
April 20261d	43	43	43	47,048
March 2026	44	39	51	841,762
February 2026	41	27	70	108,004
January 2026	46	36	97	17,816

Across 10 months of recorded prices Black knife ranged from 27 gp in February 2026 to 98 gp in July 2026, measured over 218 trading days.

The 30-day average of 43 gp sits in the lower third of that range.

All prices in gp. Volume counts units traded across both sides of the Grand Exchange.

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