Black knife price in OSRS — live Grand Exchange data

About Black knife

In game it is examined as “A finely balanced throwing knife.” Black knife is members-only, so a membership is needed to trade or use it. The base game value is 19 gp, which is what shops price from rather than what players pay.

Black knife buy limit

The Grand Exchange lets one account buy 7,000 every 4 hours. That is enough to build a real position inside a day. Filling it once costs about 301,000 gp at the 43 gp price recorded on 11 October 2026. The limit is per account and resets on a rolling 4-hour timer.

GE tax on Black knife

The 2% sale tax is rounded down, and at 43 gp it rounds to nothing — sales under 50 gp are untaxed, so a flip here keeps its whole margin.

High alching Black knife

High alchemy turns one Black knife into 11 gp. That is less than the 142 gp nature rune the cast costs, so alching Black knife always loses money.

How much Black knife trades

Black knife sees about 15.3K trades a day, which makes it steadily traded — an order priced at the spread normally fills the same hour. That is roughly 2 times the 7,000 buy limit.

Black knife FAQ

How much is Black knife in OSRS? Black knife is 43 gp on the Grand Exchange as of 11 October 2026, with an insta-sell of 38 gp. The chart above is live.

What is the buy limit for Black knife? 7,000 every 4 hours.

Can you high alch Black knife for profit? No — the alch value is 11 gp and the nature rune alone costs 142 gp.

Do you need members for Black knife? Yes, Black knife is members-only.