LEGO Mia's Summer Heart Box 41388-1
LEGO Mia's Summer Heart Box (41388-1) is worth about $12 on the secondary market today, against a $10 retail price. It has 85 pieces, belongs to the Friends theme and was released in 2019. This set has retired — LEGO no longer produces it, so supply is fixed and prices are set entirely by the resale market.
Take Mia’s sunshine with you wherever you go!
- Set number
- 41388-1
- Theme
- Friends
- Subtheme
- Summer Heart Box
- Year
- 2019
- Pieces
- 85
- Minifigures
- 1
- RRP
- $10
- Market value
- $12
- Used value
- $2
- Released
- 2019
- Retirement
- Retired in 2019
Minifigures in LEGO Mia's Summer Heart Box
Mia's Summer Heart Box value by year
From $9 in 2019 to $11 in 2026 so far: +21%. Its highest year was 2025, at $11.
| Year | Value | Change |
|---|---|---|
| 2026 (so far) | $11 | −3.7% |
| 2025 | $11 | +5.6% |
| 2024 | $11 | −2.9% |
| 2023 | $11 | +8.7% |
| 2022 | $10 | −9.5% |
| 2021 | $11 | +11.9% |
| 2020 | $10 | +11.6% |
| 2019 | $9 | — |
Median of each year's market prices, sealed, in US dollars.
What you are paying for
Its 1 priced minifigure is worth about $2 together, roughly 16% of the set's value — about typical for Friends sets (typically 16%).
Frequently asked questions
How much is LEGO Mia's Summer Heart Box (41388-1) worth?
LEGO Mia's Summer Heart Box is worth approximately $12 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Mia's Summer Heart Box retired?
Yes — Mia's Summer Heart Box (41388-1) 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 Mia's Summer Heart Box gone up in value?
Yes. Mia's Summer Heart Box launched at $10 and now trades around $12, an increase of 16.1%. See the price history chart for how it got there.
What is the price per piece for Mia's Summer Heart Box?
At its $10 retail price across 85 pieces, Mia's Summer Heart Box works out to about $0.118 per piece. Collectors often use price per piece to judge whether a set is good value.
Is LEGO Mia's Summer Heart Box a good investment?
Mia's Summer Heart Box currently trades 16.1% above its $10 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 Mia's Summer Heart Box so expensive?
Mia's Summer Heart Box was released in 2019 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.