Rubium splinters

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

In-game examine text: "Be careful with these! They're unstable!"

It has a Grand Exchange buy limit of 30,000 every four hours, a high alchemy value of 9 gp, and item ID 31722.

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Rubium Splinters shows an active flip setup with a margin of +6 gp and 3,085,192 trades over the last 24 hours.

At the buy limit of 30,000 every four hours, max profit per cycle is about 180.0k gp — high margin with healthy liquidity.