LEGO Dolphin Costume (col28-9)
The Dolphin Costume (col28-9) is a LEGO Collectible Minifigures set that was released in January 2026 and retired in April 2026 with a shelf life of 3 months 29 days.
This LEGO set has 7 pieces and had a RRP of $4.99 (£3.49 / 3.99€) which equates to a price per piece of 0.71c (0.50p / 0.57€). Since it retired it has gone down in value by -14.1% and now has a value of $4.29 based on the average recorded new-condition sale price from 1 April 2026 to 28 October 2026.
Price over time
View price history table
| Month | Avg Price | Sales |
|---|---|---|
| Apr 26 | $3.99 | 37 |
| May 26 | $3.99 | 285 |
| Jun 26 | $5.32 | 43 |
| Jul 26 | $3.99 | 21 |
| Aug 26 | $3.99 | 30 |
| Sep 26 | $3.99 | 24 |
| Oct 26 | $3.99 | 105 |
Minifigures
This set contains 1 minifigures. All of the minifigures in this set are exclusive, meaning they don't appear in any other LEGO sets.
Monthly sales
We have recorded 545 sales of the Dolphin Costume set since Apr 26. 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 Dolphin Costume is $4.29
The 1 minifigures in this set make up 0% of the total set value.
The Dolphin Costume Fan, Series 28 (Minifigure Only without Stand and Accessories) minifigure is the most valuable minifigure in this set who contributes 0% of the set value .
My collection
Set details
Name: Dolphin Costume
Theme: Collectible Minifigures
Sub Theme: Series 28
Set number: col28-9
Alternate set number: 71051-9
Status: Retired
Retired for: 7 months
Pieces: 7
Minifigures: 1
Jan 1, 2026
Jan 1, 2026
Jan 1, 2026
Jan 1, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Apr 30, 2026
Shelf life: 4 months
$4.99
£3.49
3.99€
0.713c
0.499p
0.570€
Set value
Confidence: High
Current value: $4.29
Increase from RRP: -14.1%
Yearly ROI: -14.1%
Set colors
The Dolphin Costume has 7 pieces and is ranked 17121 on the list of biggest LEGO sets ever made.
The most common colour in this set is Satin Trans-Light Blue
The most common part in this set is Rock 1 x 1 Jewel Octagonal
Stats
Frequently Asked Questions
How much is the LEGO Dolphin Costume (col28-9) worth?
The LEGO Dolphin Costume is currently worth $4.29 based on the average recorded new-condition sale price from 1 April 2026 to 28 October 2026. The original retail price was $4.99.
How many pieces are in the LEGO Dolphin Costume?
The LEGO Dolphin Costume (col28-9) contains 7 pieces, making it the 17121st biggest LEGO set ever made.
Is the LEGO Dolphin Costume retired?
Yes, the LEGO Dolphin Costume has been retired. It was retired in April 2026 and is no longer available from LEGO directly. You can find it on the secondary market through sites like BrickLink and eBay.
How many minifigures are in the LEGO Dolphin Costume?
The LEGO Dolphin Costume contains 1 minifigure, 1 of which is exclusive to this set. The minifigures include: Dolphin Costume Fan, Series 28 (Minifigure Only without Stand and Accessories).
When was the LEGO Dolphin Costume released?
The LEGO Dolphin Costume (col28-9) was released in January 2026 as part of the Collectible Minifigures theme.
Is the LEGO Dolphin Costume a good investment?
Since retirement, the LEGO Dolphin Costume has decreased in value by 14.1% from its original retail price.
Latest recorded sales month: Oct 26