How to flip Crystal weapon seed in OSRS

Flipping Crystal weapon seed on the Old School RuneScape Grand Exchange currently makes about 5,324 gp profit per item after the 2% GE tax: buy near 296,516 gp (the instant-sell price) and re-list near 308,000 gp (the instant-buy price).

• Buy at (instant-sell): 296,516 gp
• Sell at (instant-buy): 308,000 gp
• Margin after 2% tax: 5,324 gp (1.80% ROI)
• Buy limit per 4 hours: 70
• 24h volume: 1,650 (liquid)
• Max profit per limit cycle: 372,680 gp on 20,756,120 gp of capital

The flip, step by step

1. Place a buy offer at or just above 296,516 gp (the current instant-sell price).
2. Wait for the fill. Crystal weapon seed is liquid right now, so expect fills within the hour at reasonable prices.
3. Re-list at or just below 308,000 gp (the current instant-buy price).
4. The GE takes 6,160 gp tax (2%) per item when it sells, leaving 5,324 gp profit each.
5. Repeat up to the buy limit (70 per 4 hours), a full cycle is 372,680 gp on 20,756,120 gp of capital.

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