Aldarium

Aldarium is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "A special alchemical ingredient used for creating potions."

It has a Grand Exchange buy limit of 13,000 every four hours, a high alchemy value of 60 gp, and item ID 29993.

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Aldarium shows an active flip setup with a margin of +1.4k gp and 28,324 trades over the last 24 hours.

At the buy limit of 13,000 every four hours, max profit per cycle is about 18.84m gp — high margin with healthy liquidity.