Set 31128
Dolphin and Turtle
Retired Mar 2024Retail price$9.99What LEGO charged
Worth now$13.51Based on 12 recent sealed sales
Asking now$21.99Typical price on 28 eBay listings
vs retail+35%Worth more than it cost
Too expensive
Selling costs more than this set returns.
How much is LEGO 31128 Dolphin and Turtle worth?
LEGO 31128 Dolphin and Turtle is worth about $13.51 sealed right now, based on 12 recent sealed sales. That's 35% above its $9.99 retail price. It came out in 2022 with 137 pieces. It was retired in Mar 2024. Over the last 82 days its typical asking price has fallen 8%, from $24.00 to $21.99. We last checked it 7 days ago.
Price history
Value history
Oct 18$2228 listings
- Lowest
- $22
- Highest
- $25
- Change
- -8%
- Asking vs retail
- +120%
26 observations · median asking · rechecked 8× daily
Should you buy it?
Sellers want $22, but it’s actually been going for $14. Offer low.
If you bought it to resell
Sells sealed for$14
Marketplace fees · 15.25%−$2
Payment processing · 2.9% + $0.30−$1
Shipping · est. from 137 pieces−$9
Reaches you$1
Pay no more than$1
For a 30% return at your costs. Change them and every figure on the site follows.
What it actually sold for
Sealed
$14
12 sold in six months · $9–$16Used
$7
4 sold in six monthsSellers are asking 63% more than buyers actually paid. The $22 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
- 31128
- Theme
- Creator · Creator 3-in-1
- Released
- 2022
- Status
- Retired Mar 2024
- Pieces
- 137
- Minifigures
- —
- Retail price
- $9.99
- Value per piece
- $0.161
- Price confidence
- high · 28 listings
- Last checked
- 7 days ago
Where these numbers come from
eBay28 live listingsThe asking price here — the median of what sellers want right now, $22. Last checked Oct 18.See the listings →BrickLink12 completed salesWhat it actually sold for — $14 across six months of real transactions. Last checked Oct 22.Open the price guide →Catalogue137 piecesPiece counts, minifigures, release year and retail price come from Rebrickable and Brickset. Retail was $10.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.
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