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The most valuable DUPLO Baby LEGO sets by current market value. This list ranks 21 sets by current BrickPicker value, refreshed from live market data. Right now the top spot belongs to Oval Rattle at $204. The top 5 alone account for about 59% of the value on this list. Every entry links to its full price history and marketplace listings. Updated 2026-07-22.
Top 5 hold 59% of this list's value ($1,237).
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| Name | / piece | |||
|---|---|---|---|---|
| 1 |  Oval Rattle Duplo · 1983 | $204 | +5012% | $203.98 |
| 2 |  Spin-A-Coaster Duplo · 1983 | $171 | +2746% | $85.25 |
| 3 |  Telephone Rattle Duplo · 1987 | $140 | +658% | $46.75 |
| 4 |  Baby Bath Set Duplo · 1989 | $123 | +1439% | $12.30 |
| 5 |  Rock 'n' Roller Duplo · 1989 | $94 | +818% | $31.36 |
| 6 |  Touch and Learn Cot Toy Duplo · 1987 | $77 | +113% | $12.88 |
| 7 |  Baby Gift Pack Duplo · 1989 | $67 | +175% | $13.50 |
| 8 |  Activity and Bath Toy Duplo · 1986 | $55 | +998% | $27.40 |
| 9 |  Bath-Tub Buddies Duplo · 1989 | $54 | +339% | $26.90 |
| 10 |  Oval Rattle Duplo · 1986 | $53 | +1223% | $52.77 |
| 11 |  Clown Shape Sorter Duplo · 1985 | $44 | +260% | $6.27 |
| 12 |  Clown Shape Sorter Duplo · 1986 | $35 | +396% | $4.95 |
| 13 |  Duck Rattle Duplo · 1983 | $26 | +512% | $26.00 |
| 14 |  Activity and Bath Toy Duplo · 1983 | $20 | +186% | $10.00 |
| 15 |  Square Rattle Duplo · 1983 | $16 | +293% | $15.70 |
| 16 |  Squirrel Rattle Duplo · 1986 | $13 | +166% | $6.63 |
| 17 |  Spin-A-Coaster Duplo · 1986 | $11 | +83% | $5.48 |
| 18 |  Duck Rattle - Teether Duplo · 1987 | $11 | +91% | $10.50 |
| 19 |  Rocking Horse Duplo · 1984 | $10 | -38% | $4.82 |
| 20 |  Squirrel Rattle Duplo · 1984 | $9 | +115% | $4.30 |
| 21 |  Rocking Horse Push-Along Duplo · 1986 | $6 | +0% | $3.00 |
The 2015 Oval Rattle is the most valuable, worth about $204 on the current market.
Around $204 — that's the current BrickPicker value of the 2015 Oval Rattle, the top-ranked set on this list.
This list ranks 21 duplo baby lego sets by current market value, refreshed from live sales data.