Vial of blood

Vial Of Blood is a members-only item on the OSRS Grand Exchange in the runes category.

In-game examine text: "A glass vial containing blood."

It has a Grand Exchange buy limit of 13,000 every four hours, a high alchemy value of 60 gp, and item ID 22446.

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Vial Of Blood shows an active flip setup with a margin of +59 gp and 255,407 trades over the last 24 hours.

At the buy limit of 13,000 every four hours, max profit per cycle is about 767.0k gp — high margin with healthy liquidity.