Black tourmaline core
The blackened heart of the Grotesque Guardians.
- Buy at (instant-sell)
- 316,988
- Sell at (instant-buy)
- 333,671
- GE tax on sale
- 6,673
- Margin
- 10,010
- ROI
- 3.2%
- Buy limit (4h)
- 5
- Potential profit
- 50,050
- Last buy seen
- Last sell seen
- Item ID
- 21730
- Members
- yes
- High alch
- 24,900
- Low alch
- 16,600
- Base value
- 41,500
- High alch profit
- -308,927
- Low alch profit
- -317,227
- 1 hour
- +5.3%
- 24 hours
- +0.0%
- 7 days
- -29.1%
- 30 days
- -21.6%
- Traded (24h, our archive)
- 61
- Upstream /volumes figure
- 1
The lowest price someone is selling at nowThe highest price someone is buying at now2% of the sale price, capped at 5,000,000 gpThe item's value in the game's own definitions. Alchemy and general-store rates derive from it; it is not a price any shop necessarily charges.High alch value minus a nature rune minus the buy price, assuming a fire staff. No GE tax: alching is not a Grand Exchange sale.Low alch value minus a nature rune minus the buy price, assuming a fire staff. No GE tax: alching is not a Grand Exchange sale.From the wiki's undocumented /volumes endpoint, as at 2026-11-05T12:54:58Z