Jester Box icon, Legendary rarity item in Grand Piece Online

Jester Box JBOX

Tier B+ Legendary High demand Low confidence
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Current trading value

4.2K

Range 3.4K–5.1K

Window30d

UpdatedOct 6, 2026

Trades78
Offered16
Wanted62
Demand ×3.88

trade value per $1

Buy on PetMart

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Think the Jester Box value is off? Tell us

Jester Box isn’t in stock. Pteranodon trades near it — 4.8K, $3.49. PetMart is our shop

What Jester Box's value means

At 4.2K value units, Jester Box is worth about 0.42× the 10,000-unit reference the value chart is pegged to (a Mythical Fruit Chest's starting value in the solve).

That figure is a low-confidence read: the solver places the true value between 3.4K and 5.1K (a ±20% band) off 78 observed Discord trades.

In trade chats and value lists, Jester Box is also written JBOX.

Demand is currently rated High and rarity is Legendary, both recomputed every solver run.

How to get Jester Box

Dropped by
Demon Jester
Location
Abyss
Drop rate
1%
Trade level
385+

Price history · 60 days

Per-day median across observed trades. Last point is today's solver run.

Recent Jester Box trades

The exact offers our pipeline parsed from Discord. No edits, no opinions.

  • seen 9× Pika  Jester Box
  • seen 5× Gura  Jester Box

Most common trade shapes observed for Jester Box, from 14 solo-trade samples.

Trade recommendations

Auto-built from the value-matches graph. Verdicts use the same win/fair/lose math as the calculator.

WIN

Jester Box for True Ba'al's Guard (4.2K)

Jester Box's value tops True Ba'al's Guard. Clean win on paper.

+2.1% in your favor

FAIR

Jester Box for Fishing Rod (4.4K)

Inside the confidence band. Fair on paper.

-3.3% delta

Browse all GPO values →

FAQ

How much is Jester Box worth in GPO?

Jester Box's current trading value is approximately 4.2K (range 3.4K-5.1K), based on 78 observed Discord trades over the last solver run. Updated 2026-10-06.

How do you get Jester Box in GPO?

Source: Demon Jester. Drop rate: 1%. Location: Abyss.

How is Jester Box's value calculated?

Jester Box's value is derived purely from observed Discord trade messages using a ratio-chain solver against the Mythical Fruit Chest anchor (10,000 value units). No editor opinions, no hand-tuned numbers. See /legal/methodology for the full math.

Why is the value a range, not one number?

The range is a 90% confidence band. The single headline number is the median. The band shows where the solver thinks the true value lives given noise.