# Giant seaweed price

> Giant seaweed Grand Exchange price right now (30 gp), with buy and sell prices, 24h volume, our own price history, buy limit, high alch profit and the GE tax.

Canonical: https://osrsgrandexchange.com/items/giant-seaweed
Last updated: 2026-11-02

Members item. Item id 21504.

Examine: “Seaweed of large size.”

## Price now

Prices as of 2026-11-02 00:20 UTC.

**Giant seaweed is 45% below its 30-day average.**

|  |  |
| --- | --- |
| Price | 30 gp |
| 90-day range (daily averages) | 27–86 gp |
| 30-day average | 55 gp |
| Change 24h / 7d / 30d | +48.1% / -20.0% / -44.4% |
| Instant buy | 31 gp (2026-10-30 07:45 UTC) |
| Instant sell | 28 gp (2026-10-30 08:26 UTC) |
| Volume 24h | 270,662 |
| 1h average buy / sell | 46 / 33 gp |
| 24h average buy / sell | 49 / 30 gp |
| Buy limit (4h) | 11,000 |

## Selling

- GE tax each: 0 gp
- You receive: 31 gp
- Flip margin after tax: 3 gp
- Per buy limit: 33,000 gp

## High alchemy

- High alch value: 1
- Low alch value: 1
- Profit per cast: -182 gp

Buying one at the instant-buy price plus a nature rune; fire runes assumed from a staff.

## Giant seaweed price, last 7 days

Hourly averages from our own history.

|  | Instant-buy average | Instant-sell average |
| --- | --- | --- |
| Oct 26, 2026 (first point) | 30 | 26 |
| Oct 30, 2026 (last point) | 46 | 33 |

Range plotted: 19 to 46 gp, over 83 points.

## Giant seaweed price history

Daily averages. Since Apr 8, 2026 the lowest daily sell average was 24 gp and the highest buy average 188 gp.

|  | Instant-buy average | Instant-sell average |
| --- | --- | --- |
| Apr 8, 2026 (first point) | 162 | 158 |
| Oct 31, 2026 (last point) | 49 | 30 |

Range plotted: 24 to 188 gp, over 207 points.

## Questions

### How much is Giant seaweed worth in OSRS?

About 30 gp right now on the Grand Exchange: the last instant buy was 31 gp and the last instant sell 28 gp. Over the last 24 hours 270,662 were traded.

### What is the GE buy limit for Giant seaweed?

11,000 every 4 hours.

### Is Giant seaweed worth high alching?

High alchemy gives 1 coins. Buying one at 31 gp plus a nature rune makes that a 182 gp loss per cast right now.

### How much tax do you pay selling Giant seaweed?

0 gp each at 31 gp (2%, rounded down, capped at 5m per item), so you receive 31 gp.

Item id 21504. Prices update every five minutes.

## Related

- [GE tax calculator](https://osrsgrandexchange.com/ge-tax-calculator)
- [Best items to alch](https://osrsgrandexchange.com/high-alch)
- [How we get prices](https://osrsgrandexchange.com/about)