LEGO Kai 891723-1
LEGO Kai (891723-1) is estimated at about $8 sealed as of Sep 2026. Retired 2017 · 12 pieces · 2017 Ninjago. Track its value and price history.
- Set number
- 891723-1
- Theme
- Ninjago
- Subtheme
- Magazine Gift
- Year
- 2017
- Pieces
- 12
- Minifigures
- 1
- Market value
- $8 (Estimate, Sep 2026)
- Used value
- $4
- Released
- 2017
- Retirement
- Retired in 2017
Minifigures in LEGO Kai
Kai value by year
From $4 in 2018 to $8 (Estimate, Sep 2026): +97%. Its highest year was 2026, at $8.
| Year | Value | Change |
|---|---|---|
| Estimate, Sep 2026 | $8 | +35.2% |
| 2026 (so far) | $8 | +23.1% |
| 2025 | $6 | −7.5% |
| 2024 | $7 | +21.6% |
| 2023 | $5 | −5.7% |
| 2022 | $6 | −1.5% |
| 2021 | $6 | +55.6% |
| 2020 | $4 | −28.1% |
| 2019 | $5 | +24.9% |
| 2018 | $4 | — |
Median of each year's market prices, sealed, in US dollars.
Frequently asked questions
How much is LEGO Kai (891723-1) worth?
LEGO Kai is worth approximately $8 on the secondary market today, based on current listings and completed sales. BrickStats updates this value daily.
Is LEGO Kai retired?
Yes — Kai (891723-1) 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 Kai so expensive?
Kai was released in 2017 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.