Black tourmaline core
OSRS Grand Exchange price, high alch, and buy limit for Black tourmaline core (Members). The blackened heart of the Grotesque Guardians.
Buy offer (Wiki low)
375,000 gp
Sell offer (Wiki high)
414,451 gp
High alch
24,900 gp
Low alch
16,600 gp
GE buy limit / 4h
5
Shop value
41,500 gp
Weight
1 kg
GE tax (2% on sell)
-8,289 gp
Net flip profit
31,162 gp (8.3%)
Black tourmaline coreMembers
Instant buy 414K · Instant sell 375K · GE limit 5/4h
Tax uses the live 2% Grand Exchange rate (capped at 5M GP per item).
Black tourmaline core price & alch
Live Grand Exchange offers for Black tourmaline core: buy near 375K and sell near 414K. High Level Alchemy yields 25K; low alch is 17K. The GE buy limit is 5 every 4 hours. After the 2% GE tax (8.3K at a sale of 414K), estimated net flip profit is 31K per item (8.3% ROI) — about 156K at a full limit if every unit fills..