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LEGO 40584 Birthday Diorama

LEGO 40584 Birthday Diorama

set number 40584 · Seasonal · released 2023 · retail —

Discontinued · Dec 2023Scarce

Lifecycle data records LEGO 40584 Birthday Diorama as discontinued, dated Dec 2023. The lowest verified complete-set listing we track is $16.95 delivered. Our scarcity signal reads scarce, with roughly 31 active listings tracked — an ownership-and-supply proxy, not a production figure. Every figure on this page is a calculated market estimate built from active listing data.

Complete-set valuation

Calculated market estimate $24.99
Lowest verified complete set $16.95 · range $16.95–$16.95
Based on 31 verified complete-set listings. Parts, instructions, minifigures and accessories are excluded.
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Complete sets — new / sealed

Compared with Seasonal

Retired Seasonal sets currently ask a median of +53.9% vs original retail (based on 19 eligible sets).

This is how other Seasonal sets that have already retired are priced today. It is not a prediction for any set. Based on current asking prices for verified complete sets on active listings, not completed sales. Past asking-price movement is not a prediction of future value.

Seasonal retired-set price data →

Market Performance Score

Not enough verified data to measure appreciation. Missing: a confirmed retirement date, a known original retail price and enough verified complete-set listings.

Browse current 40584 listings on eBay →

This opens an eBay keyword search for “LEGO 40584”. Results are unfiltered live listings — they are not verified complete sets and carry no price estimate from us. Affiliate link disclosure.

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Retiring soon, listed under retail →Retired sets still under retail →

Figures are typical asking prices from active listing data, not completed sales.

Calculated market estimate over time

2026-08-03 – 2026-09-28 · $24.99 latest

Checked 2026-10-02 · lifecycle data from Brickset. Based on Brickset ownership data + live eBay supply — LEGO does not publish production figures.

Related Seasonal sets

See all LEGO sets leaving production

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