Redberries

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

In-game examine text: "Very bright red berries."

It has a Grand Exchange buy limit of 13,000 every four hours, a high alchemy value of 1 gp, and item ID 1951.

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Redberries currently has a flip margin of −1 gp, which isn't profitable to flip right now despite 19,569 trades over the last 24 hours.

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