Opal amulet (u)

Opal Amulet (u) is a members-only item on the OSRS Grand Exchange in the other category.

In-game examine text: "It needs a string so I can wear it."

It has a Grand Exchange buy limit of 10,000 every four hours, a high alchemy value of 540 gp, and item ID 21099.

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Opal Amulet (u) shows an active flip setup with a margin of +482 gp and 91,724 trades over the last 24 hours.

At the buy limit of 10,000 every four hours, max profit per cycle is about 4.82m gp — high margin with healthy liquidity.