Earth rune

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

In-game examine text: "One of the 4 basic elemental Runes."

It has a Grand Exchange buy limit of 50,000 every four hours, a high alchemy value of 2 gp, and item ID 557.

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Earth Rune currently has a flip margin of +0 gp, which isn't profitable to flip right now despite 28,766,543 trades over the last 24 hours.

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