Vile ashes

Vile Ashes is a free-to-play item on the OSRS Grand Exchange in the other category.

In-game examine text: "A heap of ashes."

It has a Grand Exchange buy limit of 3,000 every four hours, a high alchemy value of 1 gp, and item ID 25769.

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Vile Ashes currently has a flip margin of −1 gp, which isn't profitable to flip right now despite 249,375 trades over the last 24 hours.

Items with negative or zero margins like this are better watched than actively flipped until the spread widens.