Crystal key
A mysterious key for a mysterious chest.
Crystal key is a members-only item on the OSRS Grand Exchange. The latest high price is 18,456 GP (11m ago) and the low price is 17,894 GP (1m ago). Buying at the low price and selling at the high price would leave 193 GP per item after the 2% tax (1.08% of the buy price). You can buy up to 11,000 every four hours. Buying one at the low price and casting High Alchemy with a nature rune would lose 17,970 GP. 26,565 were traded in the last 24 hours.
| High | 18,456 GP () |
|---|---|
| Low | 17,894 GP () |
| Tax | 369 GP |
| Margin | 193 GP |
| ROI | 1.08% |
| Buy limit | 11,000 every 4 hours |
| High alchemy | 90 GP |
Buy price (insta-sell / low): 17,894 GP
Sell price (insta-buy / high): 18,456 GP
Margin after tax: 193 GP per unit. Grand Exchange tax on a sale is 369 GP.
Buy limit: 11,000 every 4 hours.
The full buy limit of 11,000 Crystal key costs 196,834,000 GP at the current buy price. Across that quantity, the after-tax margin is 2,123,000 GP.
- Grand Exchange buy limit: 11,000 every 4 hours
- Members-only item
- High alchemy value: 90 GP
- Low alchemy value: 60 GP
- Base value: 150 GP
Crystal key price history
- Over the past 7 days, the average high ranged from 17,473 GP to 19,288 GP across 102 hourly samples. From 2026-11-01 UTC to 2026-11-08 UTC, it moved from 18,000 GP to 18,339 GP (+339 GP, +1.88%).
- Over the past 30 days, the average high ranged from 16,498 GP to 20,270 GP across 441 hourly samples. From 2026-10-09 UTC to 2026-11-08 UTC, it moved from 19,805 GP to 18,339 GP (-1,466 GP, -7.40%).
- Over the past 90 days, the average high ranged from 16,498 GP to 21,595 GP across 1,308 hourly samples. From 2026-08-10 UTC to 2026-11-08 UTC, it moved from 20,566 GP to 18,339 GP (-2,227 GP, -10.83%).
- Over the past 90 days, the highest average high was 21,595 GP on 2026-09-19 UTC, and the lowest was 16,498 GP on 2026-10-24 UTC.
As of 2026-11-08 UTC. See this week's market summary.
To cite this page: QuantScapers, "Crystal key price history", based on OSRS Wiki real-time price data through 2026-11-08 UTC. Calculations by QuantScapers.
What is the Grand Exchange buy limit for Crystal key?
You can buy up to 11,000 Crystal key every 4 hours on the Grand Exchange.
Is Crystal key a members-only item?
Crystal key is a members-only item and requires OSRS membership to trade.
What is Crystal key's current buy and sell price?
At the latest update, Crystal key's insta-sell (low) price is 17,894 GP and its insta-buy (high) price is 18,456 GP on the Grand Exchange.
How much Grand Exchange tax applies to Crystal key?
A sale of Crystal key pays the standard 2% Grand Exchange tax, which is 369 GP per unit at the current price.
What does a full buy limit of Crystal key cost?
Buying the full limit of 11,000 Crystal key costs 196,834,000 GP at the current insta-sell price of 17,894 GP each.