Research Institute #21110 — LEGO Ideas Set Value
LEGO IdeasWhat the Research Institute #21110 LEGO set is worth — loose, complete, and sealed.
Research Institute #21110 value — Loose $19 · Complete (CIB) $30 · Sealed (new) $40. Prices updated August 2026.
Theme · LEGO Ideas
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Item details
- Brand
- LEGO
- Theme
- LEGO Ideas
Research Institute #21110 (LEGO Ideas) resale value
A loose Research Institute #21110 set runs around $19, a complete copy (all pieces + box + instructions) about $30, and a factory-sealed box commands $40.
What drives the price
Retired sets, completeness (every piece + minifigs + instructions + box), and sealed condition drive LEGO value. Exclusive sets and discontinued themes appreciate the most; minifigs alone can carry significant value.
Price guide
What this actually trades for — sold values by condition vs. what sellers are asking today
| Condition | Value | Based on |
|---|---|---|
| Loose | $19 | eBay sold comps |
| Complete (CIB) | $30 | eBay sold comps |
| Sealed (new) | $40 | eBay sold comps |
Frequently asked questions
- What is the best deal for Research Institute #21110?
- The best value depends on your needs; the loose version is the most affordable at $19.
- How much is the complete set worth?
- The complete, in-box version of Research Institute #21110 is listed for $27.
- Where can I find a brand new, sealed copy?
- A sealed, new copy of Research Institute #21110 is available for $43.
