Gielinor's Ledger
3rd Age plateskirt

3rd Age plateskirt

Fabulously ancient armour beaten from magical silver.

MembersBuy limit 8Armour & WearablesLegs
Insta-buy

30,919,111gp

Insta-sell

28,400,900gp

Spread

2,518,211gp

8.87%
Margin

+1,899,829gp

+6.69% ROI
Volume

—

Trend

—

Price history

1 points · hover for detail

Insta-buy (high)Insta-sell (low)Spread
30D low
28,400,900
30D high
30,919,111
Volatility
8.5%

Flip calculator

Includes the 2% Grand Exchange tax

gp
gp
units
Net profitProfitable

+1,899,829gp

+1,899,829 per item · +6.69% ROI

Capital required
28,400,900 gp
Gross revenue
30,919,111 gp
GE tax (2%, 618,382/item)
− 618,382 gp
Break-even sell
28,980,510 gp

Item data

High alchemy
120,000 gp99.6% below market
Low alchemy
80,000 gp
Shop value
200,000 gp
Weight
2.721 kg
Skill / type
Legs
Stack / note
Not stackable · noteable
Released
Apr 11, 2019

About 3rd Age plateskirt

The 3rd Age plateskirt is a members-only piece of equipment in Old School RuneScape.

"Fabulously ancient armour beaten from magical silver"

Over the last 30 days it traded between 28,427,831 and 31,450,889 gp on the Grand Exchange, averaging 29,848,248 gp. About 5 units changed hands per day. The price is up 1.7% across that window. The Grand Exchange buy limit is 8 every 4 hours. Selling one at the average price costs 596,964 gp in Grand Exchange tax.

Casting High Level Alchemy returns 120,000 gp, which is 99.6% below the 30-day average price, so alching a bought one loses money.

How to get 3rd Age plateskirt

4 monsters drop 3rd Age plateskirt, most commonly The Mimic (1/5,244), Reward casket (hard) (1/211,250) and Reward casket (elite) (1/249,262.5).

Dropped by

MonsterRarityQuantity
The Mimic1/5,2441
Reward casket (hard)1/211,2501
Reward casket (elite)1/249,262.51
Reward casket (master)1/313,1681

3rd Age plateskirt price history

Daily averages rolled up per month, newest first.

Monthly average, low and high price of 3rd Age plateskirt on the Grand Exchange
MonthAverageLowHighVolume
October 202612d29,554,88228,865,12230,856,43873
September 202629,651,23428,161,92831,450,889172
August 202628,864,35427,007,97331,202,353214
July 202633,068,18430,811,55435,572,750263
June 202621d35,858,12131,978,99439,852,5463,261
May 20262d38,422,73937,242,12039,603,3576
April 20261d37,658,40737,658,40737,658,4079
March 202641,686,69336,688,97944,984,10416,311
February 202647,688,98043,284,96150,513,52316,123
January 202649,566,61847,917,99551,053,18017,856

Across 10 months of recorded prices 3rd Age plateskirt ranged from 27,007,973 gp in August 2026 to 51,053,180 gp in January 2026, measured over 218 trading days.

The 30-day average of 29,848,248 gp sits in the lower third of that range.

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