How many pieces does the LEGO Birthday Diorama (40584-1) have?

The LEGO Birthday Diorama set (40584-1) contains 157 pieces. It was released in 2023 as part of the LEGO Seasonal theme.

How can I find missing parts for LEGO set 40584-1?

On BrickMissing you can check which parts from the LEGO Birthday Diorama (40584-1) you already own. Add your LEGO collection and we'll show exactly which of the 157 pieces you're missing and which you already have.

Can I build the LEGO Birthday Diorama with parts I already have?

Use BrickMissing's free parts checker to find out. Add LEGO sets you own to your collection and we'll cross-reference all 157 parts to show your buildability percentage and which specific pieces you still need.

What theme is the LEGO Birthday Diorama from?

The LEGO Birthday Diorama (40584-1) belongs to the LEGO Seasonal theme. You can browse all Seasonal sets on BrickMissing to find more sets from this theme.

Birthday Diorama

40584-1 Seasonal 2023 157 parts 1.8% catalog rarity Easy

Say 'Happy Birthday' in style with the LEGO Birthday Diorama (40584)! Craft a vibrant party scene, perfect for celebrating any LEGO fan's special day. This delightful diorama comes packed with festive details to bring the celebration to life. Discover colorful balloons, a lit candle, delicious-looking cakes, thoughtfully wrapped gifts, and clear 'Happy Birthday' signage. Once complete, this charming scene measures over 9 cm (3.5 in.) high, 8 cm (3 in.) wide, and 8 cm (3 in.) deep, making it a wonderful display piece for any festive occasion.

Parts Inventory

🧱 157 parts

Showing the first 12 rows of the parts list (157 pieces in total). The full list loads automatically.

Color	Qty	LEGO price each
Unknown	1×	Check price → View
Medium Azure	1×	€0,17 View at LEGO → View
Lime	1×	€0,17 View at LEGO → View
Bright Pink	4×	Check price → View
Medium Nougat	3×	€0,23 View at LEGO → View
Black	1×	€0,29 View at LEGO → View
White	3×	€0,27 View at LEGO → View
Dark Turquoise	3×	Check price → View
Bright Light Yellow	2×	€0,11 View at LEGO → View
Lavender	5×	€0,11 View at LEGO → View
White	8×	€0,07 View at LEGO → View
Bright Light Yellow	4×	€0,07 View at LEGO → View