Marble block

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

In-game examine text: "A beautifully carved marble block."

It has a Grand Exchange buy limit of 11,000 every four hours, a high alchemy value of 150.0k gp, and item ID 8786.

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Marble Block currently has a flip margin of −7.9k gp, which isn't profitable to flip right now despite 4,693 trades over the last 24 hours.

Items with negative or zero margins like this are better watched than actively flipped until the spread widens.