Onyx price in OSRS — live Grand Exchange data

About Onyx

In game it is examined as “This looks valuable.” Onyx is members-only, so a membership is needed to trade or use it. The base game value is 200,000 gp, which is what shops price from rather than what players pay.

Onyx buy limit

The Grand Exchange lets one account buy 11,000 every 4 hours. That is a generous limit, so the market rather than the limit is usually what caps a position here. Filling it once costs about 30,576,216,000 gp at the 2,779,656 gp price recorded on 11 October 2026. The limit is per account and resets on a rolling 4-hour timer.

GE tax on Onyx

Selling at 2,779,656 gp costs 55,593 gp in tax — 2%, rounded down, taken from the seller. A flip has to clear that before it makes anything, and it is the number most margin calculators leave out.

High alching Onyx

High alchemy turns one Onyx into 120,000 gp. Onyx is worth far more than that on the Grand Exchange, so the figure matters for the alch calculator rather than as anything to do.

How much Onyx trades

Onyx sees about 6 trades a day, which makes it very thinly traded — there may be no buyer for hours at a time, and one sale can set the price. That is less than twice the 11,000 buy limit, so a handful of buyers can take a whole day of supply.

Onyx FAQ

How much is Onyx in OSRS? Onyx is 2,779,656 gp on the Grand Exchange as of 11 October 2026, with an insta-sell of 2,695,000 gp. The chart above is live.

What is the buy limit for Onyx? 11,000 every 4 hours.

Can you high alch Onyx for profit? Not at the moment — the alch value is 120,000 gp and a nature rune costs 142 gp, so it only pays below 119,858 gp.

Do you need members for Onyx? Yes, Onyx is members-only.