Cosmic tiara
P2PBuy limit: 40·last trade 13m ago
Confidence
Confidence43%
One score blending fill chance, market volume and profit quality.
Fill chance44%
Volume20%
Profit57%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at501
Buy fills5%
Sell at1,099
Sell fills5%
Net / item577 (115.2%)
Est. profit / 4h23.1K
40 units · 44% fill confidence
Insta-sell
500
cheapest buy (full spread)
Insta-buy
1,100
dearest sell (full spread)
Gross margin
600
GE tax
22
2% per item, max 5M
Net margin
578
115.6% ROI
Volatility
69.7%
price noise (1h history)
How to flip the Cosmic tiara
The Cosmic tiara is a members-only Old School RuneScape item — “A tiara infused with the properties of the cosmos.”. Its Grand Exchange buy limit is 40 per 4 hours. Right now it buys at 500 gp and sells at 1,100 gp — a net margin of 578 gp (115.6% ROI) after the 2% Grand Exchange tax of 22 gp. High alchemy yields 60 gp.
To flip it, place a buy offer near 500 gp and a sell offer near 1,100 gp; the spread minus GE tax is your profit. Confidence figures are model estimates from live OSRS Wiki prices, not guarantees — flip responsibly.
Price history
● insta-buy● insta-sell● moving avg
Why this fill score
Trading volume23%
Two-sided liquidity75%
Recent activity90%
Size vs market25%
Why this profit score
Spread persistence100%
No price spike96%
Margin plausibility0%