Echo pearl

The Echo pearl is a members-only Old School RuneScape item — “A glowing pearl, as you stare into it you can hear sounds of the ocean.”. Its Grand Exchange buy limit is effectively unlimited. Right now it buys at 59,400 gp and sells at 72,853 gp — a net margin of 11,996 gp (20.2% ROI) after the 2% Grand Exchange tax of 1,457 gp. High alchemy yields 4,800 gp.

To flip it, place a buy offer near 59,400 gp and a sell offer near 72,853 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.