Lego® Ideas 21355 The Evolution of STEM

Current best price

LEGO 21355 is currently available from £72.95 incl. shipping at eBay. Only one retailer in our comparison stocks it.

Updated 2 November 2026 at 09:33

LEGO® Ideas The Evolution of STEM 21355 (1/13)
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LEGO® Ideas The Evolution of STEM 21355 (11/13)
LEGO® Ideas The Evolution of STEM 21355 (12/13)
LEGO® Ideas The Evolution of STEM 21355 (13/13)

Lego 21355 price comparison: where is it cheapest?

Prices incl. shipping to the UK ·

Brickfact may earn a commission when you buy through a merchant link. Commissions do not determine the order of offers. How Brickfact compares prices

iFurther information
The Lego set The Evolution of STEM with the set number 21355 is part of the LEGO Ideas theme and is recommended for ages 18+. That makes it a set mainly for adults. It was released in March 2025. It includes 3 minifigures. The model has 879 pieces, and we estimate it takes around 2 - 3 hours to build. 78 Brickfact users have this set in their collection.
The set weighs about 0.936 kg. The box measures 26.2 x 38.2 x 7.1 cm. The recommended retail price is £69.99.
Our Brickfact Lego price comparison compares the prices of 1 shop for this set. It is currently cheapest at eBay for £72.95 including shipping. That is £0.08 per piece. Unfortunately, the set is currently not available below its recommended retail price.
The Part-Out-Value (POV) is the sum of the average prices paid on bricklink.com for all parts of this set. It is about £120.33. You save around £47.38 if you buy the complete set at eBay instead of the individual parts on bricklink.com. The current best offer therefore has a POV rate of 1.65: the Part-Out-Value divided by the current best price on Brickfact.

Lego 21355 product data

Set Information

Set ID
21355
Theme
Pieces
879
Building Time
2 - 3 hours
Age Range
18+
Minifigures
3

Availability

Release
03/2025
Retiring Status
Retiring Soon (12/2026)

Price Information

RRP
£69.99
Insiders Points (for purchase at Lego)
560
Part Out Value
£120.33
i

Packaging

Weight
0.936 kg
EAN (GTIN13)
5702017824871

Lego 21355 price history: how has the price changed?

Brickfact has been recording retailer prices since 12/10/2026. Best price so far: £55.99 (21 days ago).

Current best price
£72.95 +4% vs. RRP
Best price since 12/10/2026
£55.99 -20% vs. RRP · 21 days ago

Daily lowest prices at the tracked shops, including shipping. Gaps indicate days with no recorded price. The table lists each shop’s lowest price.

Lowest price per retailer (since 12/10/2026)

Since 12/10/2026, eBay was the cheapest on 8 of 13 recorded days.

RetailerCurrentLowest priceDate
Lego.co.uk–£55.9925/10/26
eBay LogoeBay£72.95£72.9502/11/26

Lowest price per day that Brickfact recorded at the retailers in the price comparison, including shipping where known – as in the comparison above. Amazon offers are not included in the price history.

Popularity with Brickfact users

users have this set
78
buyers in the last 12 months
51

78 Brickfact users have The Evolution of STEM in their collection. 51 users bought it in the last 12 months.

Based on anonymized Brickfact user collections; shown only for sets with at least 10 users. As of 2 November 2026.

Lego 21355 market value

Average sale price on secondary marketplaces – not the new price at retailers.

Current market value
£56.05
Market value vs. RRP
−19.9 % £69.99
Range
£53.22 – £63.93
Average
£57.44

Loading price history…

Minifigures from 21355 The Evolution of STEM

The The Evolution of STEM set includes 3 different minifigures, 3 of which are unique to this set. The combined value of the minifigures is £16.96, which is ~24% of the RRP of this set.
x1
Thumbnail of minifigure idea223
George Washington Carver
LEGO Ideas
time-logo
2025
#idea223
£4.17
i
Unique
x1
Thumbnail of minifigure idea224
Sir Isaac Newton
LEGO Ideas
time-logo
2025
#idea224
£6.81
Unique
x1
Thumbnail of minifigure idea225
Marie Curie
LEGO Ideas
time-logo
2025
#idea225
£5.98
Unique

Official Set Description for LEGO 21355 The Evolution of STEM

Open a brick-built book on the evolution of STEM (science, technology, engineering and maths) with this LEGO® Ideas collectible display model for adults (21355). An inspiring science gift for women, men and history-lovers, the set features a buildable base in the shape of an open book topped by mini builds that represent historic innovations. Build an early car and a home computer, the NASA Voyager Probe with the Golden Record on board for any extraterrestrial life form that may find it, and much more. Turn the dial to make a 3D replica of a carbon atom float upwards and a DNA strand rotate.

The set includes LEGO minifigures of 3 famous scientists: Marie Curie (née Skłodowska), the first person ever to win 2 Nobel prizes; Sir Isaac Newton, famous for his law of universal gravitation; and pioneering agricultural scientist George Washington Carver.

Find building instructions in the box and on the LEGO Builder app to help you with every step of your rewarding, creative journey through the history of STEM. Contains 879 pieces.

  • Science gift for women, men and history-lovers – Celebrate groundbreaking innovations in science, technology, engineering and maths with this collectible LEGO® Ideas The Evolution of STEM display model
  • LEGO® minifigures of 3 famous scientists – The “mother of modern physics” Marie Curie (née Skłodowska), Sir Isaac Newton, leader of the Scientific Revolution, and agricultural science pioneer George Washington Carver
  • Collectible display model for adults – A buildable base shaped like an open book is topped with many mini builds including Newton’s apple tree, Carver’s plants bed, a space shuttle and a robotic arm
  • Fun features – Turn the dial to make the 3D replica of a carbon atom float upwards and the DNA strand rotate, and look out for a Morse code message, NASA Voyager Probe with the Golden Record, and more
  • Gift for science-lovers and history buffs – Treat yourself or gift this LEGO® model kit to other adults with a passion for STEM subjects or history
  • A helping hand – Find building instructions on the LEGO® Builder app and in the box in a booklet that also features interviews with the set’s fan designer and LEGO Ideas designers
  • The LEGO® fans’ choice – This collectible building set for adults is part of a range of LEGO Ideas sets, each created by a fan designer, voted for by LEGO fans and produced by the LEGO Group
  • Science-themed home decor – This 879-piece LEGO® set measures over 27 cm (10.5 in.) high, 23 cm (9 in.) wide and 19 cm (7.5 in.) deep

Building Instruction for LEGO 21355 The Evolution of STEM

LEGO 21355 Frequently Asked Questions

How much does LEGO 21355 The Evolution of STEM cost?
The lowest price in the Brickfact price comparison is currently £72.95 incl. shipping at eBay. The RRP is £69.99.
Where can I buy LEGO 21355 cheapest?
Only one retailer in the Brickfact price comparison currently stocks LEGO 21355: eBay (£72.95).
Is LEGO 21355 still available?
Yes, but LEGO 21355 is retiring soon. It is still available at 1 retailers in our price comparison.
When was LEGO 21355 cheapest?
Since tracking began on 12/10/2026, the lowest shop price recorded by Brickfact for LEGO 21355 was £55.99 on 13/10/2026 at Lego.co.uk, including shipping. Amazon prices are not included.

All LEGO Ideas sets from 2025

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