Dagannoth bones

The Dagannoth bones is a members-only Old School RuneScape item — “These would feed a dogfish for months!”. Its Grand Exchange buy limit is 7,500 per 4 hours. Right now it buys at 11,862 gp and sells at 12,004 gp — a net margin of -98 gp (-0.8% ROI) after the 2% Grand Exchange tax of 240 gp. High alchemy yields 90 gp.

To flip it, place a buy offer near 11,862 gp and a sell offer near 12,004 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.