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Compare 1 retailers.

Retailer prices for 40584 are sorted by the lowest delivered price when shipping is known.

Retailer prices

Prices tracked across 67 retailers, updated twice a day.

1 Steentjesplein steentjesplein.nl In stock - Shipping unknown; total may be higher 23 Sep - Unknown Price: € 25.00 € 12.99 Shipping unknown; total may be higher

If you buy through our links, we may earn a commission. This does not affect prices or ranking.

Full price history at a glance.

Lowest yet
€19.99
16 Dec 2025 · Bol.com
Peak price
€32.88
5 Jun 2026 · Kitstore
Average
€26.53
104% above RRP
RRP
€12.99
reference price

Daily lowest price tracked across 3 Dutch retailers. The dotted line marks LEGO's recommended retail price.

Source: daily measurement at 3 Dutch retailers, 15 Dec 2025 – 23 Sep 2026. RRP via LEGO.com.

Last 12 price points for LEGO 40584 Birthday Diorama
Date Price Retailer Stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
€25.00 Steentjesplein In stock
Price expectation

Price will likely drop.

82%
High · ±6%

Stronger signal than most sets in this theme. Waiting is a reasonable strategy.

Estimated price · next 3 months

now · €25.00 expected · €23.50
Price expectation Birthday Diorama
Date Price Type
2026-06-27 €25.00 History
2026-06-28 €25.00 History
2026-06-29 €25.00 History
2026-06-30 €25.00 History
2026-07-01 €25.00 History
2026-07-02 €25.00 History
2026-07-03 €25.00 History
2026-07-04 €25.00 History
2026-07-05 €25.00 History
2026-07-06 €25.00 History
2026-07-07 €25.00 History
2026-07-08 €25.00 History
2026-07-09 €25.00 History
2026-07-10 €25.00 History
2026-07-11 €28.01 History
2026-07-12 €25.00 History
2026-07-13 €28.01 History
2026-07-14 €25.00 History
2026-07-15 €25.00 History
2026-07-16 €28.02 History
2026-07-17 €25.00 History
2026-07-18 €25.00 History
2026-07-19 €25.00 History
2026-07-20 €25.00 History
2026-07-21 €28.07 History
2026-07-22 €25.00 History
2026-07-23 €25.00 History
2026-07-24 €28.08 History
2026-07-25 €25.00 History
2026-07-26 €25.00 History
2026-07-28 €25.00 History
2026-07-29 €25.00 History
2026-07-30 €25.00 History
2026-07-31 €25.00 History
2026-08-01 €28.05 History
2026-08-02 €25.00 History
2026-08-05 €25.00 History
2026-08-06 €25.00 History
2026-08-07 €25.00 History
2026-08-08 €25.00 History
2026-08-09 €25.00 History
2026-08-10 €25.00 History
2026-08-11 €25.00 History
2026-08-12 €25.00 History
2026-08-13 €28.00 History
2026-08-14 €28.02 History
2026-08-15 €25.00 History
2026-08-16 €25.00 History
2026-08-17 €25.00 History
2026-08-18 €28.06 History
2026-08-19 €25.00 History
2026-08-20 €25.00 History
2026-08-22 €25.00 History
2026-08-23 €25.00 History
2026-08-24 €25.00 History
2026-08-25 €25.00 History
2026-08-26 €25.00 History
2026-08-28 €25.00 History
2026-08-30 €25.00 History
2026-08-31 €25.00 History
2026-09-01 €25.00 History
2026-09-03 €25.00 History
2026-09-04 €25.00 History
2026-09-05 €25.00 History
2026-09-06 €25.00 History
2026-09-08 €25.00 History
2026-09-09 €25.00 History
2026-09-13 €25.00 History
2026-09-14 €25.00 History
2026-09-15 €25.00 History
2026-09-16 €25.00 History
2026-09-17 €25.00 History
2026-09-18 €25.00 History
2026-09-19 €25.00 History
2026-09-21 €25.00 History
2026-09-22 €25.00 History
2026-09-23 €25.00 History
2026-09-24 €25.00 History
2026-10-24 €24.50 Forecast
2026-11-23 €24.00 Forecast
2026-12-23 €23.50 Forecast
€12.99 RRP
€25.00 Lowest · 90 days
€28.12 Highest · 90 days
Falling Trend

About this set

For LEGO Birthday Diorama (40584), we track 1 Dutch retailer, with 1 currently in stock. This set from the Other theme has 157 pieces, including 2 minifigures and was released in 2023. The current lowest price is €25.00 at Steentjesplein. That works out to €0.16 per piece. The lowest price ever was €19.99 on 16 Dec 2025 at Bol.com. The set is recommended for builders aged 6 and up. The current price is above that low, so waiting for a drop may pay off. Use price history and stock data to judge whether this is a good time to buy.

Dimensions
14.1 × 15.7 × 6.1 cm
Weight
190 g
Pieces
157
Age
6+
Explore more

Dive deeper into this set.

All about this set

Say "Happy Birthday" in a stylish way!

Media

View the set from every angle.

3 images
LEGO Birthday Diorama (40584) Front view LEGO Birthday Diorama (40584) - image 1 Image 2 LEGO Birthday Diorama (40584) - image 2 Image 3
Reference

Set details

Set number 40584
Theme Other
Subtheme Birthday
Year 2023
Pieces 157
Minifigures 2
Price per piece €0.16
Age 6+
Dimensions 14.1 × 15.7 × 6.1 cm
Weight 190 g
RRP €12.99
Parts

Parts inventory

157
pieces
35 unique parts across 21 colors
Distinctive parts
  • Support Round 2 x 2 x 2 Stand with Reinforced Underside Part ID 19798
  • Brick Special 1 x 4 with Masonry Brick Profile Part ID 15533
  • Equipment Camera Handheld with Central Viewfinder Part ID 30089b
Building instructions Birthday Diorama instruction manual

Minifigures in Birthday Diorama.

2 minifigures according to this set's Rebrickable inventory.

All minifigures
Boy (White Shirt with Balloons, Dark Purple Top Hat) fig-013498
Boy (White Shirt with Balloons, Dark Purple Top Hat)
fig-013498
Girl (Bright Pink Top, Short Tan Legs, Dark Azure Hair) fig-013499
Girl (Bright Pink Top, Short Tan Legs, Dark Azure Hair)
fig-013499
Frequently asked questions

All about the Birthday Diorama.

What is the lowest price for Birthday Diorama?
The lowest current price we show is €25.00.

Has LEGO 40584 ever been cheaper?
The lowest historical price was €19.99 on 16 Dec 2025 at Bol.com.

How many pieces does LEGO 40584 have?
This set has 157 pieces.

Which minifigures are included in LEGO 40584?
This set includes 2 minifigures, including Boy, Girl.

What year is this set from?
LEGO 40584 was released in 2023.

What is the RRP for LEGO 40584?
LEGO's recommended retail price is €12.99.

What is the recommended age for LEGO 40584?
LEGO recommends ages 6+ for this set.

Is LEGO 40584 still available?
Yes, this set is currently available at 1 retailer.

Which retailers do you compare?
We currently compare 1 retailer prices for this set.

How often do you update prices?
We check prices multiple times per day at every tracked retailer and publish the most recent value on this page.