Onyx trades around 2.72m gp now, -4.3% this week, 7-day range 2.57m–2.94m.
Flippers place a buy offer near the low and sell near the high.
“This looks valuable.”
Onyx last traded at 2,757,321 gp (insta-buy) and 2,688,413 gp (insta-sell) on the Grand Exchange. After the GE tax on a sale, that leaves a margin of 13,762 gp per item. 135 were traded in the last 24 hours. It is a members' item.
Hourly mid price, the average of the buy and sell prices. Volume counts both sides.
Daily GE guide prices from 28 Mar 2015 to 11 Oct 2026, from the OSRS Wiki. Data as of 11 Oct 2026.
Tax: Selling one at 2,757,321 gp costs 55,146 gp in tax (2% of the sale price, rounded down, capped at 5m gp). Tax-exempt items →
Onyx last sold for 2,688,413 gp (instant sell) and was last bought for 2,757,321 gp (instant buy) on the Grand Exchange.
You can buy 11,000 Onyx every 4 hours. The 4 hours start from your first purchase, and only buying counts towards the limit.
High alchemy turns Onyx into 120,000 gp. Buying one at 2,757,321 gp and casting with a nature rune at 137 gp costs 2,757,458 gp. That is a loss of 2,637,458 gp per cast at the latest prices, so it is not worth alching for profit right now.
No. Selling one at 2,757,321 gp costs 55,146 gp in tax (2% of the sale price, rounded down, capped at 5m gp).
The highest daily guide price on record for Onyx is 3,196,736 gp, on 24 Nov 2018. The lowest is 1,329,238 gp, on 24 May 2021.