655gp
650gp
5gp
-8gp
—
—
Price history
1 points · hover for detail
Volume · units traded
- 30D low
- 650
- 30D high
- 655
- Volatility
- 0.8%
Flip calculator
Includes the 2% Grand Exchange tax
-8gp
-8 per item · -1.23% ROI
Tax puts break-even at 663 gp.
- Capital required
- 650 gp
- Gross revenue
- 655 gp
- GE tax (2%, 13/item)
- − 13 gp
- Break-even sell
- 663 gp
Item data
- High alchemy
- 3 gp99.5% below market
- Low alchemy
- 2 gp
- Shop value
- 5 gp
- Weight
- 0 kg
- Stack / note
- Stackable · not noteable
- Released
- Aug 9, 2005
About Proboscis
Proboscis are a members-only item in Old School RuneScape.
"A giant mosquito's proboscis, aerodynamic and sharp!"
Over the last 30 days they traded between 477 and 652 gp on the Grand Exchange, averaging 585 gp. About 1,224 units changed hands per day. The price is up 12.4% across that window. The Grand Exchange buy limit is 100 every 4 hours. Selling one at the average price costs 11 gp in Grand Exchange tax.
Casting High Level Alchemy returns 3 gp, which is 99.5% below the 30-day average price, so alching a bought one loses money.
How to get Proboscis
Only Large mosquito (Always) and Mosquito swarm (Always) drop Proboscis.
Dropped by
| Monster | Rarity | Quantity |
|---|---|---|
| Large mosquito | Always | 1 |
| Mosquito swarm | Always | 3 |
Proboscis price history
Daily averages rolled up per month, newest first.
| Month | Average | Low | High | Volume |
|---|---|---|---|---|
| October 202612d | 597 | 482 | 652 | 19,415 |
| September 2026 | 566 | 314 | 651 | 29,607 |
| August 2026 | 611 | 392 | 750 | 44,716 |
| July 2026 | 638 | 169 | 3,760 | 33,783 |
| June 202621d | 285 | 111 | 500 | 10,022 |
| May 20262d | 459 | 302 | 615 | 1,055 |
| April 20261d | 699 | 699 | 699 | 598 |
| March 2026 | 405 | 269 | 514 | 25,565 |
| February 2026 | 420 | 327 | 473 | 16,967 |
| January 2026 | 442 | 369 | 487 | 17,856 |
Across 10 months of recorded prices Proboscis ranged from 111 gp in June 2026 to 3,760 gp in July 2026, measured over 218 trading days.
The 30-day average of 585 gp sits in the lower third of that range.
All prices in gp. Volume counts units traded across both sides of the Grand Exchange.