Brimstone ring

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

In-game examine text: "A well balanced ring that aids in piercing magic defence."

It has a Grand Exchange buy limit of 8 every four hours, a high alchemy value of 6.0k gp, and item ID 22975.

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Brimstone Ring shows an active flip setup with a margin of +21.2k gp and 1,139 trades over the last 24 hours.

At the buy limit of 8 every four hours, max profit per cycle is about 169.3k gp — high margin with healthy liquidity.