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LEGO Rontu the Master Dragon set 71842-1 box

LEGO Rontu the Master Dragon (71842-1)

The Rontu the Master Dragon (71842-1) is a LEGO Ninjago set that was released in May 2025 and is due to retire on July 2026.

This LEGO set has 381 pieces and had a RRP of $49.99 (£39.99 / 44.99€) which equates to a price per piece of 0.13c (0.10p / 0.12€). It has gone down in value by -32.0% and now has a value of $34.00 based on average sale price over the last 6 months.

Price over time

New condition
View price history table
Month Avg Price Sales
Jun 25 $50.91 8
Jul 25 $49.15 2
Aug 25 $47.40 0
Sep 25 $45.64 1
Oct 25 $43.89 0
Nov 25 $42.13 0
Dec 25 $42.13 1
Jan 26 $47.40 0
Feb 26 $50.91 1
Mar 26 $40.38 1

Minifigures

This set contains 4 minifigures with a combined value of $42.18. None of the minifigures in this set are exclusive, meaning they all appear in other LEGO sets.

Images © BrickLink.com

Monthly sales

We have recorded 14 sales of the Rontu the Master Dragon set since Jun 25. The chart below shows the number of recorded sales per month, which can help indicate the popularity and availability of this set on the secondary market.

Value breakdown

The current value of Rontu the Master Dragon is $34.00

The 4 minifigures in this set make up 124% of the total set value.

The Zarkt minifigure is the most valuable minifigure in this set who contributes 53% of the set value .

My collection

Set details

Name: Rontu the Master Dragon

Theme: Ninjago

Set number: 71842-1

Status: Active

Pieces: 381

Minifigures: 4

Released:
US Flag May 3, 2025
UK Flag May 3, 2025
CA Flag May 3, 2025
EU Flag May 3, 2025
Retired:
US Flag Jul 31, 2026 (est.)
UK Flag Jul 31, 2026 (est.)
CA Flag Jul 31, 2026 (est.)
EU Flag Jul 31, 2026 (est.)

Shelf life: 11 months

RRP:
US Flag $49.99
GB Flag £39.99
EU Flag 44.99€
PPP:
US Flag 0.131c
GB Flag 0.105p
EU Flag 0.118€

Set value

Confidence: Medium

Current value: $34.00

Increase from RRP: -32.0%

ROI Prediction

We estimate that 2 years after retirement the value of this set will have increased by 31.96%.

However it could be as low as 21.36% or as high as 43.54%

Where to buy

Amazon logo Amazon £49.99 Buy
LEGO logo LEGO £39.99 Buy
Hamleys logo Hamleys Buy
Amazon logo Amazon Buy

Minifigures

Most expensive:
Zarkt
Least expensive:
Wyldfyre - Dark Red Tunic
% of set value:
124%

Set colors

The Rontu the Master Dragon has 381 pieces and is ranked 3129 on the list of biggest LEGO sets ever made.

The most common colour in this set is Dark Purple

The most common part in this set is Plate 1 x 2

Stats

Faded medal
3129th biggest LEGO set ever made
Faded medal
139th biggest LEGO Ninjago set
Faded medal
6985th most valuable LEGO set
Faded medal
244th most valuable LEGO Ninjago set

Frequently Asked Questions

How much is the LEGO Rontu the Master Dragon (71842-1) worth?

The LEGO Rontu the Master Dragon is currently worth $34.00 based on the average sale price over the last 6 months. The original retail price was $49.99.

How many pieces are in the LEGO Rontu the Master Dragon?

The LEGO Rontu the Master Dragon (71842-1) contains 381 pieces, making it the 3129th biggest LEGO set ever made.

Is the LEGO Rontu the Master Dragon still available?

Yes, the LEGO Rontu the Master Dragon is currently still active and available for purchase. The retail price is $49.99.

How many minifigures are in the LEGO Rontu the Master Dragon?

The LEGO Rontu the Master Dragon contains 4 minifigures. The minifigures include: Zarkt, Lloyd - Dragons Rising, Tunic with Strap and Charm, Dragon Shoulder Armor, Sora - Dragon Shoulder Armor, Wyldfyre - Dark Red Tunic.

When was the LEGO Rontu the Master Dragon released?

The LEGO Rontu the Master Dragon (71842-1) was released in May 2025 as part of the Ninjago theme.

Price data last updated: Mar 26

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