The blackened heart of the Grotesque Guardians.
653.5k gp
Updated 5m ago
Black tourmaline core is currently trading at 653.5k gp on the Grand Exchange and is down 6.6% over the last 24 hours. Current instant-buy and instant-sell prices are 650.0k gp and 657.0k gp.
Category: ores · Members only · View on OSRS Wiki
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Black Tourmaline Core is a members-only item on the OSRS Grand Exchange in the ores category.
In-game examine text: "The blackened heart of the Grotesque Guardians."
It has a Grand Exchange buy limit of 5 every four hours, a high alchemy value of 24.9k gp, and item ID 21730.
Margin: -6,162 gp per flip
Volume: 458 trades / 24h
Buy limit: 5 every 4 hours
Max profit/cycle: -30,810 gp
Verdict: High margin, low liquidity
Black Tourmaline Core currently has a flip margin of −6.2k gp, which isn't profitable to flip right now despite 458 trades over the last 24 hours.
Items with negative or zero margins like this are better watched than actively flipped until the spread widens.
| Time | Buy avg | Buy vol | Sell avg | Sell vol | Margin |
|---|---|---|---|---|---|
| 7m ago(8/8/2026) | 650.0k | 2 | — | – | – |
| 12m ago(8/8/2026) | — | – | 657.0k | 1 | – |
| 17m ago(8/8/2026) | 650.0k | 1 | — | – | – |
| 52m ago(8/8/2026) | 653.0k |
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| 1 |
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| 57m ago(8/8/2026) | 653.0k | 1 | — | – | – |
| 1h ago(8/8/2026) | 654.0k | 2 | — | – | – |
| 1h ago(8/8/2026) | 653.0k | 1 | — | – | – |
| 1h ago(8/8/2026) | — | – | 664.8k | 2 | – |
| 2h ago(8/8/2026) | 650.0k | 2 | — | – | – |
| 2h ago(8/8/2026) | 650.0k | 2 | — | – | – |
| 2h ago(8/8/2026) | 650.0k | 2 | — | – | – |
| 3h ago(8/8/2026) | 650.0k | 2 | — | – | – |
| 3h ago(8/8/2026) | — | – | 685.2k | 1 | – |
| 4h ago(8/8/2026) | 650.0k | 1 | — | – | – |
| 4h ago(8/8/2026) | 636.0k | 1 | — | – | – |
| 4h ago(8/8/2026) | 634.0k | 1 | — | – | – |
| 4h ago(8/8/2026) | 621.0k | 2 | 631.6k | 2 | 10.6k |
| 4h ago(8/8/2026) | — | – | 664.8k | 1 | – |
| 5h ago(8/8/2026) | 621.0k | 1 | 625.0k | 1 | 4.0k |
| 6h ago(8/8/2026) | 620.0k | 1 | — | – | – |
| 7h ago(8/8/2026) | 620.0k | 1 | — | – | – |
| 7h ago(8/8/2026) | 620.0k | 1 | — | – | – |
| 7h ago(8/8/2026) | 622.0k | 1 | — | – | – |
| 7h ago(8/8/2026) | 622.0k | 1 | — | – | – |
| 8h ago(8/8/2026) | — | – | 631.6k | 2 | – |
| 9h ago(8/8/2026) | 622.0k | 1 | — | – | – |
| 9h ago(8/8/2026) | 622.0k | 2 | — | – | – |
| 9h ago(8/8/2026) | 640.0k | 1 | 640.0k | 1 | 0 |
| 10h ago(8/8/2026) | 620.0k | 1 | — | – | – |
| 11h ago(8/8/2026) | — | – | 664.8k | 2 | – |
| 11h ago(8/8/2026) | 621.0k | 2 | — | – | – |
| 11h ago(8/8/2026) | — | – | 694.9k | 1 | – |
| 11h ago(8/8/2026) | 621.0k | 1 | — | – | – |
| 12h ago(8/8/2026) | — | – | 694.9k | 1 | – |
| 12h ago(8/8/2026) | 621.0k | 1 | — | – | – |
| 12h ago(8/8/2026) | 621.0k | 1 | 681.0k | 1 | 60.0k |
| 12h ago(8/8/2026) | 622.0k | 2 | — | – | – |
| 13h ago(8/8/2026) | 622.0k | 4 | — | – | – |
| 13h ago(8/8/2026) | 622.0k | 1 | — | – | – |
| 13h ago(8/8/2026) | 622.0k | 1 | — | – | – |
| 14h ago(8/8/2026) | 621.0k | 1 | — | – | – |
| 14h ago(8/8/2026) | 621.0k | 1 | — | – | – |
| 14h ago(8/8/2026) | 621.0k | 1 | — | – | – |
| 14h ago(8/8/2026) | 616.0k | 1 | — | – | – |
| 14h ago(8/8/2026) | — | – | 610.6k | 5 | – |
| 15h ago(8/8/2026) | — | – | 600.0k | 1 | – |
| 15h ago(8/8/2026) | 598.0k | 1 | — | – | – |
| 15h ago(8/8/2026) | 598.0k | 1 | — | – | – |
| 15h ago(8/8/2026) | 610.0k | 6 | — | – | – |
| 15h ago(8/8/2026) | 610.0k | 2 | — | – | – |
| 15h ago(8/8/2026) | — | – | 590.0k | 2 | – |
| 15h ago(8/8/2026) | 528.7k | 1 | — | – | – |
| 15h ago(8/8/2026) | 528.7k | 1 | — | – | – |
| 16h ago(8/8/2026) | 600.0k | 1 | — | – | – |
| 16h ago(8/8/2026) | 600.0k | 1 | — | – | – |
| 16h ago(8/8/2026) | 600.0k | 1 | 598.3k | 2 | 0 |
| 16h ago(8/8/2026) | 531.3k | 2 | — | – | – |
| 16h ago(8/8/2026) | 528.7k | 1 | — | – | – |
| 17h ago(8/7/2026) | 551.0k | 1 | 570.0k | 1 | 19.0k |
| 17h ago(8/7/2026) | 551.0k | 1 | — | – | – |
| 17h ago(8/7/2026) | 568.6k | 2 | — | – | – |
| 18h ago(8/7/2026) | 528.7k | 2 | — | – | – |
| 18h ago(8/7/2026) | — | – | 550.0k | 1 | – |
| 18h ago(8/7/2026) | 525.0k | 2 | — | – | – |
| 18h ago(8/7/2026) | 501.6k | 2 | — | – | – |
| 18h ago(8/7/2026) | 613.0k | 2 | 615.0k | 1 | 2.0k |
| 18h ago(8/7/2026) | — | – | 615.0k | 2 | – |
| 18h ago(8/7/2026) | — | – | 615.0k | 2 | – |
| 19h ago(8/7/2026) | 611.0k | 1 | — | – | – |
| 19h ago(8/7/2026) | — | – | 600.5k | 4 | – |
| 19h ago(8/7/2026) | 600.0k | 1 | — | – | – |
| 20h ago(8/7/2026) | — | – | 623.6k | 2 | – |
| 20h ago(8/7/2026) | 601.3k | 3 | — | – | – |
| 20h ago(8/7/2026) | 608.0k | 3 | — | – | – |
| 21h ago(8/7/2026) | 605.0k | 5 | — | – | – |
| 21h ago(8/7/2026) | 606.0k | 2 | — | – | – |
| 21h ago(8/7/2026) | 606.0k | 2 | — | – | – |
| 21h ago(8/7/2026) | 606.0k | 2 | — | – | – |
| 22h ago(8/7/2026) | 606.0k | 2 | — | – | – |
| 22h ago(8/7/2026) | 606.0k | 2 | — | – | – |
| 22h ago(8/7/2026) | 625.5k | 2 | — | – | – |
| 23h ago(8/7/2026) | 606.0k | 1 | — | – | – |
| 23h ago(8/7/2026) | 652.0k | 3 | — | – | – |
| 23h ago(8/7/2026) | 675.0k | 1 | — | – | – |
| 23h ago(8/7/2026) | 675.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 604.0k | 1 | 640.9k | 2 | 37.0k |
| 1d ago(8/7/2026) | 604.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 604.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 604.0k | 2 | — | – | – |
| 1d ago(8/7/2026) | 600.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 675.0k | 2 | — | – | – |
| 1d ago(8/7/2026) | 675.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | — | – | 694.9k | 1 | – |
| 1d ago(8/7/2026) | 675.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | — | – | 660.1k | 1 | – |
| 1d ago(8/7/2026) | 675.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 675.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 675.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 2 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 691.6k | 1 | — | – | – |
| 1d ago(8/7/2026) | 691.6k | 1 | — | – | – |
| 1d ago(8/7/2026) | 691.6k | 2 | — | – | – |
| 1d ago(8/7/2026) | — | – | 694.9k | 1 | – |
| 1d ago(8/7/2026) | — | – | 655.7k | 4 | – |
| 1d ago(8/7/2026) | 611.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 611.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/7/2026) | 696.0k | 2 | — | – | – |
| 1d ago(8/7/2026) | — | – | 700.0k | 1 | – |
| 1d ago(8/7/2026) | — | – | 756.2k | 1 | – |
| 1d ago(8/7/2026) | — | – | 731.5k | 1 | – |
| 1d ago(8/7/2026) | — | – | 700.0k | 3 | – |
| 1d ago(8/7/2026) | 666.0k | 2 | — | – | – |
| 1d ago(8/7/2026) | — | – | 650.0k | 1 | – |
| 1d ago(8/7/2026) | 600.1k | 1 | — | – | – |
| 1d ago(8/7/2026) | 691.1k | 1 | — | – | – |
| 1d ago(8/7/2026) | — | – | 694.9k | 2 | – |
| 1d ago(8/7/2026) | — | – | 694.8k | 1 | – |
| 1d ago(8/6/2026) | — | – | 644.7k | 3 | – |
| 1d ago(8/6/2026) | 600.1k | 2 | — | – | – |
| 1d ago(8/6/2026) | 600.1k | 2 | — | – | – |
| 1d ago(8/6/2026) | — | – | 627.1k | 1 | – |
| 1d ago(8/6/2026) | 600.0k | 1 | 689.5k | 6 | 89.5k |
| 1d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 1d ago(8/6/2026) | 666.0k | 3 | — | – | – |
| 1d ago(8/6/2026) | 666.0k | 2 | — | – | – |
| 1d ago(8/6/2026) | 666.0k | 2 | — | – | – |
| 1d ago(8/6/2026) | 666.0k | 2 | — | – | – |
| 1d ago(8/6/2026) | 666.0k | 2 | — | – | – |
| 1d ago(8/6/2026) | — | – | 693.1k | 2 | – |
| 1d ago(8/6/2026) | 600.0k | 2 | — | – | – |
| 1d ago(8/6/2026) | 615.0k | 2 | — | – | – |
| 1d ago(8/6/2026) | 615.0k | 1 | — | – | – |
| 1d ago(8/6/2026) | 615.0k | 1 | — | – | – |
| 1d ago(8/6/2026) | 615.0k | 1 | — | – | – |
| 1d ago(8/6/2026) | — | – | 651.9k | 2 | – |
| 1d ago(8/6/2026) | 600.0k | 1 | — | – | – |
| 1d ago(8/6/2026) | — | – | 694.8k | 1 | – |
| 1d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 1d ago(8/6/2026) | 667.5k | 2 | — | – | – |
| 1d ago(8/6/2026) | 669.0k | 4 | — | – | – |
| 1d ago(8/6/2026) | — | – | 694.8k | 1 | – |
| 1d ago(8/6/2026) | 666.0k | 2 | — | – | – |
| 1d ago(8/6/2026) | 696.0k | 1 | — | – | – |
| 1d ago(8/6/2026) | 696.0k | 2 | — | – | – |
| 1d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | — | – | 694.9k | 2 | – |
| 2d ago(8/6/2026) | 696.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | 696.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | — | – | 694.9k | 2 | – |
| 2d ago(8/6/2026) | 701.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | 694.9k | 1 | — | – | – |
| 2d ago(8/6/2026) | 694.9k | 1 | 694.9k | 1 | 0 |
| 2d ago(8/6/2026) | 694.9k | 2 | 720.0k | 1 | 25.1k |
| 2d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | 666.0k | 2 | 660.1k | 1 | 0 |
| 2d ago(8/6/2026) | 600.0k | 2 | — | – | – |
| 2d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | 666.0k | 2 | — | – | – |
| 2d ago(8/6/2026) | — | – | 706.7k | 3 | – |
| 2d ago(8/6/2026) | 600.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | 555.3k | 1 | — | – | – |
| 2d ago(8/6/2026) | — | – | 640.0k | 1 | – |
| 2d ago(8/6/2026) | — | – | 638.0k | 2 | – |
| 2d ago(8/6/2026) | — | – | 623.5k | 3 | – |
| 2d ago(8/6/2026) | 547.5k | 2 | — | – | – |
| 2d ago(8/6/2026) | 529.2k | 1 | — | – | – |
| 2d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | 666.0k | 1 | 606.0k | 2 | 0 |
| 2d ago(8/6/2026) | 694.9k | 1 | — | – | – |
| 2d ago(8/6/2026) | 694.9k | 1 | — | – | – |
| 2d ago(8/6/2026) | — | – | 694.9k | 1 | – |
| 2d ago(8/6/2026) | 536.7k | 1 | — | – | – |
| 2d ago(8/6/2026) | — | – | 693.2k | 1 | – |
| 2d ago(8/6/2026) | — | – | 650.0k | 2 | – |
| 2d ago(8/6/2026) | — | – | 627.1k | 2 | – |
| 2d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/6/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/5/2026) | — | – | 634.8k | 3 | – |
| 2d ago(8/5/2026) | 536.7k | 1 | — | – | – |
| 2d ago(8/5/2026) | 620.0k | 2 | — | – | – |
| 2d ago(8/5/2026) | 623.0k | 1 | — | – | – |
| 2d ago(8/5/2026) | — | – | 640.0k | 2 | – |
| 2d ago(8/5/2026) | 623.0k | 2 | — | – | – |
| 2d ago(8/5/2026) | 623.0k | 1 | — | – | – |
| 2d ago(8/5/2026) | 623.0k | 2 | — | – | – |
| 2d ago(8/5/2026) | 620.0k | 1 | — | – | – |
| 2d ago(8/5/2026) | — | – | 620.0k | 1 | – |
| 2d ago(8/5/2026) | 620.0k | 2 | — | – | – |
| 2d ago(8/5/2026) | 620.0k | 2 | — | – | – |
| 2d ago(8/5/2026) | 536.7k | 1 | — | – | – |
| 2d ago(8/5/2026) | 529.2k | 1 | — | – | – |
| 2d ago(8/5/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/5/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/5/2026) | 666.0k | 2 | — | – | – |
| 2d ago(8/5/2026) | 666.0k | 1 | — | – | – |
| 2d ago(8/5/2026) | — | – | 693.2k | 1 | – |
| 2d ago(8/5/2026) | — | – | 596.6k | 3 | – |
| 2d ago(8/5/2026) | 529.2k | 1 | — | – | – |
| 2d ago(8/5/2026) | — | – | 550.0k | 2 | – |
| 2d ago(8/5/2026) | 600.0k | 2 | — | – | – |
| 2d ago(8/5/2026) | 600.0k | 1 | 600.0k | 1 | 0 |
| 2d ago(8/5/2026) | 600.0k | 3 | — | – | – |
| 2d ago(8/5/2026) | 600.0k | 2 | — | – | – |
| 2d ago(8/5/2026) | 600.0k | 1 | — | – | – |
| 2d ago(8/5/2026) | 600.0k | 1 | — | – | – |
| 3d ago(8/5/2026) | 600.1k | 1 | — | – | – |
| 3d ago(8/5/2026) | 600.1k | 1 | — | – | – |
| 3d ago(8/5/2026) | — | – | 600.0k | 1 | – |
| 3d ago(8/5/2026) | 606.7k | 2 | — | – | – |
| 3d ago(8/5/2026) | — | – | 641.7k | 3 | – |
| 3d ago(8/5/2026) | 613.3k | 1 | — | – | – |
| 3d ago(8/5/2026) | — | – | 650.0k | 1 | – |
| 3d ago(8/5/2026) | 613.3k | 2 | — | – | – |
| 3d ago(8/5/2026) | 613.3k | 1 | — | – | – |
| 3d ago(8/5/2026) | — | – | 675.0k | 1 | – |
2.5k gp