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Rontu the Master Dragon

Snapshot

vs RRP
20% under
Per piece
9.2¢

Value per piece

cost per part at each reference

9.2¢lowest market value

about 30% under retail, which runs ~13¢ a piece

Reference

MSRP13¢
Used market9.2¢
New market10¢
Set Retiring soon · Jul 2026

Rontu the Master Dragon

Reference
71842-1
Theme
Ninjago
Year
2025
Parts
381
UPC
673419405119
EAN
5702017815756

Rontu the Master Dragon is a LEGO set from the LEGO Ninjago theme released in 2025. It is built from 381 pieces.

New avg$39.99Used avg$35.16MSRP$49.99

Avg. 3rd-party market prices via BrickPicker, not CollectORbuild seller prices

See full valuation & price history →Track its value free →
Value history$39.99▼ -$2.75 (-6.4%)all time
$30$37$45retail $49.99
Jul 4New · used (dashed)Jul 25

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Parts in this set (138)

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A peek at the pile. See the full list, grouped by color, on the parts page.

Sticker Sheet for Set 71842-1Photo shows a different color. This lot is (Not Applicable).1×Animal Body Part, Barb / Claw / Tooth / Talon / Horn, Small3×Brick 1 x 12×Brick 1 x 32×Brick Round Corner 2 x 2 Macaroni with Stud Notch and Reinforced Underside [New Style]2×Brick Sloped 30° 1 x 1 x 2/3 (Cheese Slope)2×Bracket 5 x 2 x 1 1/3 with Bottom Stud HolderPhoto shows a different color. This lot is Black.1×Minifig Head Zarkt, Red Eyes, Dark Tan Sharp Teeth, Fangs, Dark Purple Markings, Closed Mouth / Open MouthPhoto shows a different color. This lot is Black.1×Hat, RoninPhoto shows a different color. This lot is Black.1×Plate 2 x 121×Plate 2 x 31×Dish 2 x 2 Inverted [Radar]2×Plate Round 1 x 1 with Solid Stud1×Plate Round 4 x 4 with 2 x 2 Round Opening2×View all 138 →