Iron scimitar

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

In-game examine text: "A vicious, curved sword."

It has a Grand Exchange buy limit of 125 every four hours, a high alchemy value of 67 gp, and item ID 1323.

View on OSRS Wiki

Iron Scimitar shows an active flip setup with a margin of +9 gp and 2,333 trades over the last 24 hours.

At the buy limit of 125 every four hours, max profit per cycle is about 1.1k gp — high margin with healthy liquidity.