Birthday Diorama (40584-1) is a LEGO City set from 2023. There isn't enough recent sales data for a reliable price estimate. It includes 2 minifigures.
Birthday Diorama sells for an average of $14.48 new/sealed on BrickLink based on 6 months of completed sales. As a retired set, prices tend to hold steady or appreciate over time, especially for complete sets with original packaging. Actual prices vary with completeness. Missing minifigures or key parts will lower the value.
This set includes 2 minifigures: Boy - White Shirt, Dark Azure Short Legs, Dark Purple Top Hat ($8.50), Girl - Bright Pink Top with Butterflies and Flowers, Tan Short Legs, Dark Azure Hair ($1.92). The minifigures have a combined BrickLink value of $10.42. Each figure is linked above with individual pricing if you're looking to buy or sell specific characters.
Yes, Birthday Diorama was released in 2023 and has been retired from retail for several years. Retired LEGO sets are only available on the secondary market through BrickLink, eBay, or other resale platforms.
Use the parts list on this page to check every piece and all 2 minifigures. For the minifigures specifically, you can use the brick'em scanner to identify each figure from a photo and confirm it matches what should be in this set. Missing pieces can be individually sourced on BrickLink.
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