LEGO Promotional 40783 Coral Reef Diorama

Specifications
| Set number | 40783 |
|---|---|
| Release year | 2025 |
| Piece count | 260 |
| Minifigures | 0 |
| Theme | Promotional |
| Building instructions | Download the instructions on lego.com |
Where to buy set 40783
Also on: Amazon.co.uk · Amazon.ca
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LEGO 40783 Coral Reef Diorama is a 2025 Promotional set depicting a coral reef scene in diorama form.
LEGO 40783 Coral Reef Diorama belongs to the Promotional theme.
Its build is therefore centered on arranging the reef scene and creating a compact underwater environment.
This set is suited to display, to collectors of Promotional releases, and to builders interested in ocean themed subjects. Within the Promotional theme, it sits as a decorative nature based model rather than a figure driven play set. It can also serve as a small companion piece for collections focused on marine scenery.
Inventory of set 40783
The inventory of set 40783 lists 260 pieces, spare parts excluded: 75 different lots (one shape in one color) for 53 part shapes. The box also contains 28 spare parts, for small elements that are easy to lose.
Colors of set 40783
Main color: dark tan, making up 10% of the parts, followed by light bluish gray (8.8%) and olive green (7.7%).
| Color | Parts | Share | |
|---|---|---|---|
| Dark Tan | 26 | 10% | |
| Light Bluish Gray | 23 | 8.8% | |
| Olive Green | 20 | 7.7% | |
| Green | 16 | 6.2% | |
| Dark Bluish Gray | 15 | 5.8% | |
| Orange | 15 | 5.8% | |
| Coral | 13 | 5% | |
| Tan | 13 | 5% | |
| Yellow | 11 | 4.2% | |
| Magenta | 10 | 3.8% | |
| Other colors (20) | 98 | 38% |
Part types
| Type | Parts | Share | |
|---|---|---|---|
| Plants & Trees | 65 | 25% | |
| Plates Round Curved and Dishes | 41 | 16% | |
| Plates | 32 | 12% | |
| Bricks Sloped | 26 | 10% | |
| Bricks Wedged | 17 | 6.5% | |
| Plates Special | 12 | 4.6% |
Most common parts in set 40783
| Part | Color | Quantity |
|---|---|---|
| Plant, Flower, Plate Round 1 x 1 with 5 Petals 24866 | Coral | 12 |
| Brick Wedged, Sloped 45° 2 x 2 Corner 13548 | Light Bluish Gray | 11 |
| Plate 1 x 2 3023 | Olive Green | 10 |
| Brick Sloped 75° 2 x 1 x 3 with Hollow Stud 4460b | Dark Tan | 9 |
| Plate Round 1 x 1 with Open Stud 85861 | Green | 9 |
| Plate Round 1 x 1 with Open Stud 85861 | Dark Tan | 9 |
| Plant, Flower, Plate Round 1 x 1 with 5 Petals 24866 | Yellow | 7 |
| Cone 1 x 1 [Top Groove] 59900 | Magenta | 7 |
| Plant, with Bar and Off-shoot with Stud 1566 | Olive Green | 6 |
| Tile Special Round 1 x 1 with Hollow Bar 20482 | Dark Bluish Gray | 6 |
52 of the 53 part shapes in this set have their own page on Setopedia, with their colors, element numbers and the other sets that use them. See all LEGO parts
No part in set 40783 is exclusive: each one is found in at least one other set, which makes replacing a lost element easier.
No similarly sized set supplies more than a quarter of its parts: set 40783 relies on a little-shared assortment.
Size of set 40783 within its line
With 260 pieces, set 40783 ranks #29 out of 204 Promotional sets in our database, which have an average of 147 parts. Among the 625 sets released in 2025, it ranks #344.
The set in 3D
Spin the official model of the set, brick by brick.
Load the 3D model3D model: Rene Rechthaler, LDraw.org Official Model Repository (CCAL 2.0 licence)
Frequently asked questions
How many pieces does LEGO set 40783 Coral Reef Diorama have?
LEGO set 40783 Coral Reef Diorama has 260 pieces. It was released in 2025 as part of the Promotional theme.
What year was LEGO set 40783 released?
Set 40783 Coral Reef Diorama was released in 2025 and belongs to the Promotional theme.
Which minifigures are included in set 40783?
LEGO set 40783 Coral Reef Diorama does not include any minifigures.
Where can I find the building instructions for set 40783?
The instructions for LEGO set 40783 Coral Reef Diorama can be downloaded free as a PDF from the official lego.com website, under “Building Instructions”, by entering the number 40783.
What is the main color of LEGO set 40783?
Dark tan, with 26 out of 260 pieces, or 10%. Next come light bluish gray (8.8%) and olive green (7.7%).
How many different parts does set 40783 contain?
Set 40783 has 75 different lots (one shape in one color), covering 53 part shapes. Most common part: Plant, Flower, Plate Round 1 x 1 with 5 Petals in coral, with 12 copies.
Does LEGO set 40783 contain any exclusive parts?
No: every one of its parts is found in at least one other set.
See also
Sets from the same theme
40767 Up-Scaled Baby Astronaut2025 · 250 pieces
40784 African Savanna Diorama2025 · 287 pieces
40758 Celebration: Ferris Wheel with Fireworks2025 · 230 pieces
3D40782 Tropical Rainforest Diorama2025 · 299 pieces
40785 Northern Lights Diorama2025 · 332 pieces
6593417 Mosaic2025 · 181 pieces
5009823 Fish Tank Filter & Fish Food2025 · 177 pieces
40766 Tribute to Jane Austen's Books2025 · 361 pieces
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5009626 Fish Tank2025 · 150 pieces
5009806 Retro Space Explorer2025 · 150 pieces
5009206 Elephant Pencil Holder2025 · 143 pieces
5009422 Italian Market Van2025 · 142 pieces
6615760 Trench Run2025 · 139 pieces
5009123 F1 Speedway2025 · 126 pieces
5009325 The Simpsons Living Room2025 · 123 pieces
