Uncut emerald

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

In-game examine text: "This would be worth more cut."

It has a Grand Exchange buy limit of 10,000 every four hours, a high alchemy value of 30 gp, and item ID 1621.

View on OSRS Wiki

Uncut Emerald shows an active flip setup with a margin of +29 gp and 1,330,920 trades over the last 24 hours.

At the buy limit of 10,000 every four hours, max profit per cycle is about 290.0k gp — high margin with healthy liquidity.