LEGO Supplementary Bricks 2312-1
LEGO Supplementary Bricks (2312-1) is estimated at about $103 sealed as of Sep 2026. Retired · 39 pieces · 1987 Duplo. Track its value and price history.
- Set number
- 2312-1
- Theme
- Duplo
- Year
- 1987
- Pieces
- 39
- Minifigures
- 0
- Market value
- $103 (Estimate, Sep 2026)
- Retirement
- Retired
Supplementary Bricks value by year
From $43 in 2017 to $103 (Estimate, Sep 2026): +139%. Its highest year was 2026, at $83.
| Year | Value | Change |
|---|---|---|
| Estimate, Sep 2026 | $103 | +112.1% |
| 2026 (so far) | $83 | +71.0% |
| 2025 | $48 | +0.6% |
| 2024 | $48 | −13.4% |
| 2023 | $56 | +21.8% |
| 2022 | $46 | +2.1% |
| 2021 | $45 | +1.3% |
| 2020 | $44 | +1.6% |
| 2019 | $43 | +2.3% |
| 2018 | $42 | −1.5% |
| 2017 | $43 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Supplementary Bricks (2312-1) worth?
LEGO Supplementary Bricks is worth approximately $103 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Supplementary Bricks retired?
Yes — Supplementary Bricks (2312-1) 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 Supplementary Bricks so expensive?
Supplementary Bricks was released in 1987 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.