Cosmic tiara
P2PBuy limit: 40·last trade 2m ago
Confidence
Will it fill?34%
Will it profit?76%
Joint confidence26%
Suggested prices
ConservativeSafe fillsBigger margins
Buy at279
Buy fills7%
Sell at306
Sell fills17%
Net / item21 (7.5%)
Est. profit / 4h840
40 units · round-trip fill 1%
Insta-sell
195
cheapest buy (full spread)
Insta-buy
390
dearest sell (full spread)
Gross margin
195
GE tax
7
2% per item, max 5M
Net margin
188
96.4% ROI
Volatility
330.3%
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 195 gp and sells at 390 gp — a net margin of 188 gp (96.4% ROI) after the 2% Grand Exchange tax of 7 gp. High alchemy yields 60 gp.
To flip it, place a buy offer near 195 gp and a sell offer near 390 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 liquidity17%
Recent activity98%
Size vs market11%
Why this profit score
Spread persistence100%
No price spike100%
Margin plausibility5%