LEGO Patrick Key Chain 851839-1
LEGO Patrick Key Chain (851839-1) is estimated at about $33 sealed as of Sep 2026 (retail $5). Retired 2010 · 2007 Gear. Track its value and price history.
- Set number
- 851839-1
- Theme
- Gear
- Subtheme
- Key Chains/SpongeBob SquarePants
- Year
- 2007
- Minifigures
- 0
- RRP
- $5
- Market value
- $33 (Estimate, Sep 2026)
- Released
- 2007
- Retirement
- Retired in 2010
Patrick Key Chain value by year
From $5 in 2011 to $33 (Estimate, Sep 2026): +518%. Its highest year was 2026, at $33.
| Year | Value | Change |
|---|---|---|
| Estimate, Sep 2026 | $33 | +24.0% |
| 2026 (so far) | $33 | +24.0% |
| 2025 | $27 | +28.2% |
| 2024 | $21 | −17.7% |
| 2023 | $26 | +26.9% |
| 2022 | $20 | +12.4% |
| 2021 | $18 | +6.0% |
| 2020 | $17 | −10.5% |
| 2019 | $19 | +41.9% |
| 2018 | $13 | +9.4% |
| 2017 | $12 | +10.1% |
| 2016 | $11 | +11.4% |
| 2015 | $10 | +12.8% |
| 2014 | $9 | +14.6% |
| 2013 | $8 | +17.2% |
| 2012 | $7 | +21.3% |
| 2011 | $5 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Patrick Key Chain (851839-1) worth?
LEGO Patrick Key Chain is worth approximately $33 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Patrick Key Chain retired?
Yes — Patrick Key Chain (851839-1) 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 Patrick Key Chain gone up in value?
Yes. Patrick Key Chain launched at $5 and now trades around $33, an increase of 570.5%. See the price history chart for how it got there.
Is LEGO Patrick Key Chain a good investment?
Patrick Key Chain currently trades 570.5% 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 Patrick Key Chain so expensive?
Patrick Key Chain was released in 2007 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.