Oathplate helm

A helm forged from infernal metal.

MembersBuy limit noneHead

Insta-buyHighest recent buy

79,713,940gp

Insta-sellLowest recent sell

77,796,932gp

SpreadBefore tax

1,917,008gp

2.46%

MarginAfter 2% GE tax

+322,730gp

+0.41% ROI

VolumeTraded in 30D

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TrendMid price, 30D

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Price history

1 points · hover for detail

Insta-buy (high)Insta-sell (low)Spread

30D low: 77,796,932
30D high: 79,713,940
Volatility: 2.4%

Flip calculator

Includes the 2% Grand Exchange tax

Buy at

Sell at

Quantity

units

Net profitProfitable

+322,730gp

+322,730 per item · +0.41% ROI

Capital required: 77,796,932 gp
Gross revenue: 79,713,940 gp
GE tax (2%, 1,594,278/item): − 1,594,278 gp
Break-even sell: 79,384,624 gp

Item data

High alchemy: 120,000 gp99.8% below market
Low alchemy: 80,000 gp
Shop value: 200,000 gp
Weight: 2.721 kg
Skill / type: Smithing
Stack / note: Not stackable · not noteable
Released: May 14, 2025

About Oathplate helm

The Oathplate helm is a members-only item in Old School RuneScape.

"A helm forged from infernal metal"

Over the last 30 days it traded between 77,245,137 and 84,248,513 gp on the Grand Exchange, averaging 79,758,318 gp. About 255 units changed hands per day. The price is down 6.3% across that window. Selling one at the average price costs 1,595,166 gp in Grand Exchange tax.

Casting High Level Alchemy returns 120,000 gp, which is 99.8% below the 30-day average price, so alching a bought one loses money.

How to get Oathplate helm

Only Yama (Always) and Forgotten lockbox (1/403) drop Oathplate helm.

Dropped by

Monster	Rarity	Quantity
Yama	Always	1
Forgotten lockbox	1/403	1

Oathplate helm price history

Daily averages rolled up per month, newest first.

Monthly average, low and high price of Oathplate helm on the Grand Exchange
Month	Average	Low	High	Volume
October 202612d	78,583,884	77,245,137	80,639,920	3,248
September 2026	81,690,264	77,655,365	87,786,841	7,216
August 2026	84,135,839	80,719,072	88,748,884	11,049
July 2026	88,229,783	85,241,096	92,298,610	15,506
June 202621d	89,675,007	86,206,641	95,060,333	9,525
May 20262d	89,918,415	88,041,366	91,795,463	459
April 20261d	90,971,092	90,971,092	90,971,092	157
March 2026	96,710,067	86,025,958	104,569,495	19,713
February 2026	96,447,511	93,697,097	105,604,599	16,527
January 2026	96,428,325	91,775,000	101,846,900	17,856

Across 10 months of recorded prices Oathplate helm ranged from 77,245,137 gp in October 2026 to 105,604,599 gp in February 2026, measured over 218 trading days.

The 30-day average of 79,758,318 gp sits in the lower third of that range.

All prices in gp. Volume counts units traded across both sides of the Grand Exchange.