Black locks
Perhaps someone can do something with this.
Black locks is a members-only item on the OSRS Grand Exchange. Recent trades put the high price at 1,394 GP (2d ago) and the low price at 1,470 GP (1h ago). Buying at the low price and selling at the high price would lose 103 GP per item after the 2% tax (-7.01% of the buy price). You can buy up to 8 every four hours. High Alchemy would make 284 GP per cast if you bought it at the low price and paid for the nature rune. 8 were traded in the last 24 hours.
| High | 1,394 GP () |
|---|---|
| Low | 1,470 GP () |
| Tax | 27 GP |
| Margin | -103 GP |
| ROI | -7.01% |
| Buy limit | 8 every 4 hours |
| High alchemy | 1,920 GP |
Buy price (insta-sell / low): 1,470 GP
Sell price (insta-buy / high): 1,394 GP
Margin after tax: -103 GP per unit. Grand Exchange tax on a sale is 27 GP.
Buy limit: 8 every 4 hours.
The full buy limit of 8 Black locks costs 11,760 GP at the current buy price. Across that quantity, the after-tax margin is -824 GP.
- Grand Exchange buy limit: 8 every 4 hours
- Members-only item
- High alchemy value: 1,920 GP
- Low alchemy value: 1,280 GP
- Base value: 3,200 GP
Black locks price history
- Over the past 30 days, the average high ranged from 1,394 GP to 500,000 GP across 4 hourly samples. From 2026-10-14 UTC to 2026-11-06 UTC, it moved from 500,000 GP to 1,394 GP (-498,606 GP, -99.72%).
- Over the past 90 days, the average high ranged from 1,394 GP to 500,000 GP across 12 hourly samples. From 2026-08-10 UTC to 2026-11-06 UTC, it moved from 1,568 GP to 1,394 GP (-174 GP, -11.10%).
- Over the past 90 days, the highest average high was 500,000 GP on 2026-10-14 UTC, and the lowest was 1,394 GP on 2026-11-06 UTC.
As of 2026-11-06 UTC. See this week's market summary.
To cite this page: QuantScapers, "Black locks price history", based on OSRS Wiki real-time price data through 2026-11-06 UTC. Calculations by QuantScapers.
What is the Grand Exchange buy limit for Black locks?
You can buy up to 8 Black locks every 4 hours on the Grand Exchange.
Is Black locks a members-only item?
Black locks is a members-only item and requires OSRS membership to trade.
What is Black locks's current buy and sell price?
At the latest update, Black locks's insta-sell (low) price is 1,470 GP and its insta-buy (high) price is 1,394 GP on the Grand Exchange.
How much Grand Exchange tax applies to Black locks?
A sale of Black locks pays the standard 2% Grand Exchange tax, which is 27 GP per unit at the current price.
What does a full buy limit of Black locks cost?
Buying the full limit of 8 Black locks costs 11,760 GP at the current insta-sell price of 1,470 GP each.