How to flip Emerald in OSRS

Flipping Emerald on the Old School RuneScape Grand Exchange currently makes about 8 gp profit per item after the 2% GE tax: buy near 326 gp (the instant-sell price) and re-list near 340 gp (the instant-buy price).

• Buy at (instant-sell): 326 gp
• Sell at (instant-buy): 340 gp
• Margin after 2% tax: 8 gp (2.45% ROI)
• Buy limit per 4 hours: 13,000
• 24h volume: 2,876,441 (extremely liquid)
• Max profit per limit cycle: 104,000 gp on 4,238,000 gp of capital

The flip, step by step

1. Place a buy offer at or just above 326 gp (the current instant-sell price).
2. Wait for the fill. Emerald is extremely liquid right now, so offers at fair prices typically fill within minutes.
3. Re-list at or just below 340 gp (the current instant-buy price).
4. The GE takes 6 gp tax (2%) per item when it sells, leaving 8 gp profit each.
5. Repeat up to the buy limit (13,000 per 4 hours), a full cycle is 104,000 gp on 4,238,000 gp of capital.

Margins move constantly. Re-check the live Emerald numbers and price chart on GrandExchange.com right before committing.