Purple dye

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

In-game examine text: "A little bottle of purple dye."

It has a Grand Exchange buy limit of 150 every four hours, a high alchemy value of 3 gp, and item ID 1773.

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Purple Dye currently has a flip margin of −258 gp, which isn't profitable to flip right now despite 1,650 trades over the last 24 hours.

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