Dragonstone armour set

The Dragonstone armour set is a members-only Old School RuneScape item — “A set containing dragonstone helmet, platebody, platelegs, boots and gauntlets.”. Its Grand Exchange buy limit is effectively unlimited. Right now it buys at 3,150,000 gp and sells at 3,150,000 gp — a net margin of -63,000 gp (-2.0% ROI) after the 2% Grand Exchange tax of 63,000 gp. High alchemy yields 48,000 gp.

To flip it, place a buy offer near 3,150,000 gp and a sell offer near 3,150,000 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.