LEGO Birthday Diorama 40584 40584-1
LEGO Birthday Diorama 40584 (40584-1) is worth about $18 on the secondary market today, against a $13 retail price. It has 157 pieces, belongs to the Other theme and was released in 2023. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale
Say “Happy Birthday” in style!
- Set number
- 40584-1
- Theme
- Other
- Subtheme
- Birthday
- Year
- 2023
- Pieces
- 157
- Minifigures
- 2
- RRP
- $13
- Market value
- $18
- Used value
- $7
- Released
- 2023
- Retirement
- Retired in 2023
Minifigures in LEGO Birthday Diorama 40584
What you are paying for
Its 2 priced minifigures are worth about $7 together, roughly 40% of the set's value — high for sets with minifigures, so most of what you pay for is the figures (typically 24%).
Frequently asked questions
How much is LEGO Birthday Diorama 40584 (40584-1) worth?
LEGO Birthday Diorama 40584 is worth approximately $18 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Birthday Diorama 40584 retired?
Yes — Birthday Diorama 40584 (40584-1) has been retired by LEGO and is no longer in production. Retired sets have fixed supply, which is why their prices are driven purely by the resale market.
Has LEGO Birthday Diorama 40584 gone up in value?
Yes. Birthday Diorama 40584 launched at $13 and now trades around $18, an increase of 38.6%. See the price history chart for how it got there.
What is the price per piece for Birthday Diorama 40584?
At its $13 retail price across 157 pieces, Birthday Diorama 40584 works out to about $0.083 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Birthday Diorama 40584 a good investment?
Birthday Diorama 40584 currently trades 38.6% above its $13 retail price, and it is retired, so no new supply is entering the market. Past performance is not a prediction — condition, packaging and how long you hold all affect what a set actually sells for. BrickStats reports the numbers rather than giving investment advice.
Why is LEGO Birthday Diorama 40584 so expensive?
Birthday Diorama 40584 was released in 2023 and has since retired. Once LEGO stops producing a set, the only supply is what is already in circulation, so sealed copies in good condition compete for a shrinking pool of stock. That scarcity, not the parts, is what moves the price.