Adamant longsword

Adamant 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 125 every four hours, a high alchemy value of 1.9k gp, and item ID 1301.

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Adamant Longsword shows an active flip setup with a margin of +20 gp and 12,433 trades over the last 24 hours.

At the buy limit of 125 every four hours, max profit per cycle is about 2.5k gp — high margin with healthy liquidity.