Set 71842
Rontu the Master Dragon
Retired Jul 2026Retail price$49.99What LEGO charged
Worth now$47.83Based on 5 recent sealed sales
Asking now$66.37Typical price on 28 eBay listings
vs retail−4%Worth less than shop price
Flat since retirement
Still trading near its $50 retail price. Retirement alone hasn't moved it.
How much is LEGO 71842 Rontu the Master Dragon worth?
LEGO 71842 Rontu the Master Dragon is worth about $47.83 sealed right now, based on 5 recent sealed sales. That's 4% below its $49.99 retail price. It came out in 2025 with 381 pieces and 4 minifigures. It was retired in Jul 2026. Over the last 89 days its typical asking price has risen 29%, from $51.60 to $66.37. We last checked it today.
Price history
Value history
Oct 27$6628 listings
- Lowest
- $51
- Highest
- $68
- Change
- +30%
- Asking vs retail
- +33%
27 observations · median asking · rechecked 8× daily
Should you buy it?
Sellers want $66, but it’s actually been going for $48. Offer low.
If you bought it to resell
Sells sealed for$48
Marketplace fees · 15.25%−$7
Payment processing · 2.9% + $0.30−$2
Shipping · est. from 381 pieces−$13
Reaches you$25
Pay no more than$20
For a 30% return at your costs. Change them and every figure on the site follows.
What it actually sold for
Sealed
$48
5 sold in six months · $40–$53Used
$29
1 sold in six monthsSellers are asking 39% more than buyers actually paid. The $66 figure above is a ceiling; this is the floor to negotiate toward.
Completed BrickLink transactions over the last six months. Real sales, not asking prices.
Set details
- Set number
- 71842
- Theme
- Ninjago
- Released
- 2025
- Status
- Retired Jul 2026
- Pieces
- 381
- Minifigures
- 4
- Retail price
- $49.99
- Value per piece
- $0.174
- Price confidence
- high · 28 listings
- Last checked
- today
Where these numbers come from
eBay28 live listingsThe asking price here — the median of what sellers want right now, $66. Last checked Oct 27.See the listings →BrickLink5 completed salesWhat it actually sold for — $48 across six months of real transactions. Last checked Oct 23.Open the price guide →Catalogue381 piecesPiece counts, minifigures, release year and retail price come from Rebrickable and Brickset. Retail was $50.See the catalogue entry →
eBay links are affiliate links — if you buy after clicking, we earn a small commission at no cost to you, and that is what pays for the site. BrickLink has no such programme, so those are plain links. Neither changes what we show or what we say about it.
How to read this. The value is the median of live sealed listings, after removing instructions, empty boxes, used sets, multi-set lots and implausible outliers. Real sale prices usually land below asking, so the buy-below figure is deliberately the conservative end of the range.
More Ninjago sets from around 2025
See all →
▲ 32% vs retailRetired71843 · 2025Rogue's Mech Dragon RiderNinjago · 584 pcs$9931 listings · retail $75Holding value
▲ 50% vs retailRetired71841 · 2025Dragonian Storm VillageNinjago · 305 pcs$6025 listings · retail $40Holding value
▲ 0% vs retailRetired71844 · 2025Ninja Combat VehicleNinjago · 561 pcs$10028 listings · retail $100Flat since retirement
▲ 37% vs retailRetired71845 · 2025Lloyd’s Jet MechNinjago · 1,112 pcs$15024 listings · retail $110No retail price on file