LEGO The Monster Key Chain 850453-1
LEGO The Monster Key Chain (850453-1) is estimated at about $11 sealed as of Sep 2026 (retail $5). Retired 2013 · 2012 Gear. Track its value and price history.
- Set number
- 850453-1
- Theme
- Gear
- Subtheme
- Key Chains/Monster Fighters
- Year
- 2012
- Minifigures
- 0
- RRP
- $5
- Market value
- $11 (Estimate, Sep 2026)
- Released
- 2012
- Retirement
- Retired in 2013
The Monster Key Chain value by year
From $5 in 2014 to $11 (Estimate, Sep 2026): +128%. Its highest year was 2024, at $8.
| Year | Value | Change |
|---|---|---|
| Estimate, Sep 2026 | $11 | +36.5% |
| 2026 (so far) | $7 | −4.2% |
| 2025 | $8 | −1.4% |
| 2024 | $8 | +16.5% |
| 2023 | $7 | +8.3% |
| 2022 | $6 | +1.1% |
| 2021 | $6 | +50.2% |
| 2020 | $4 | −22.8% |
| 2019 | $5 | −6.8% |
| 2018 | $6 | +4.4% |
| 2017 | $5 | +5.2% |
| 2016 | $5 | +5.7% |
| 2015 | $5 | +5.8% |
| 2014 | $5 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO The Monster Key Chain (850453-1) worth?
LEGO The Monster Key Chain is worth approximately $11 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO The Monster Key Chain retired?
Yes — The Monster Key Chain (850453-1) 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 The Monster Key Chain gone up in value?
Yes. The Monster Key Chain launched at $5 and now trades around $11, an increase of 113.0%. See the price history chart for how it got there.
Is LEGO The Monster Key Chain a good investment?
The Monster Key Chain currently trades 113.0% above its $5 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 The Monster Key Chain so expensive?
The Monster Key Chain was released in 2012 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.