LEGO Geological Inspection 6821-1
LEGO Geological Inspection (6821-1) is estimated at about $143 sealed as of Sep 2026. Retired · 28 pieces · 1980 Space. Track its value and price history.
- Set number
- 6821-1
- Theme
- Space
- Subtheme
- Classic
- Year
- 1980
- Pieces
- 28
- Minifigures
- 1
- Market value
- $143 (Estimate, Sep 2026)
- Used value
- $8
- Released
- 1980
- Retirement
- Retired
Minifigures in LEGO Geological Inspection
Geological Inspection value by year
From $110 in 2016 to $143 (Estimate, Sep 2026): +30%. Its highest year was 2024, at $153.
| Year | Value | Change |
|---|---|---|
| Estimate, Sep 2026 | $143 | +0.7% |
| 2026 (so far) | $144 | +1.2% |
| 2025 | $142 | −7.1% |
| 2024 | $153 | +13.0% |
| 2023 | $135 | +3.6% |
| 2022 | $131 | +2.9% |
| 2021 | $127 | +2.4% |
| 2020 | $124 | +0.5% |
| 2019 | $124 | +4.9% |
| 2018 | $118 | +1.3% |
| 2017 | $116 | +5.5% |
| 2016 | $110 | — |
Median of each year's market prices, sealed, in US dollars.
What you are paying for
Its 1 priced minifigure is worth about $29 together, roughly 20% of the set's value — high for Space sets, so most of what you pay for is the figures (typically 11%).
Frequently asked questions
How much is LEGO Geological Inspection (6821-1) worth?
LEGO Geological Inspection is worth approximately $143 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Geological Inspection retired?
Yes — Geological Inspection (6821-1) 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.
Why is LEGO Geological Inspection so expensive?
Geological Inspection was released in 1980 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.