Rune longsword

Rune Longsword is a free-to-play item on the OSRS Grand Exchange in the weapons category.

In-game examine text: "A razor sharp longsword."

It has a Grand Exchange buy limit of 70 every four hours, a high alchemy value of 19.2k gp, and item ID 1303.

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Rune Longsword currently has a flip margin of −187 gp, which isn't profitable to flip right now despite 46,578 trades over the last 24 hours.

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