Ancient essence

Ancient Essence is a members-only item on the OSRS Grand Exchange in the ores category.

In-game examine text: "Pure magical energy filled with a dark power."

It has a Grand Exchange buy limit of 300,000 every four hours, a high alchemy value of 16 gp, and item ID 27616.

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Ancient Essence currently has a flip margin of +0 gp, which isn't profitable to flip right now despite 85,794,432 trades over the last 24 hours.

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