Mewtwo [Inverted Stamp Error] #3 — Pokémon Promo Card Value
Pokémon PromoWhat the Mewtwo [Inverted Stamp Error] #3 card from Pokémon Promo is worth — ungraded and graded (PSA 10).
Mewtwo [Inverted Stamp Error] #3 value — Ungraded $1,260. Prices updated August 2026.
Monthly CIB value, based on sold comps.
See the actual sold listings on eBay ↗Live on eBay right now
Which version do you have?
If you just want the card, buy the Standard Mewtwo #3 for $17. The Inverted Stamp Error version at $1260 offers significant scarcity and a unique error, making it a premium collectible. Collectors prioritizing investment or unique errors should pay the premium. Casual buyers looking for basic ownership should stick to the Standard version to save money.
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Item details
- Brand
- Pokémon
- Set
- Pokémon Promo
- Game
- Pokémon
- Card number
- #3
- Publisher
- Nintendo
Mewtwo [Inverted Stamp Error] #3 (Pokémon Promo) card value
An ungraded Mewtwo [Inverted Stamp Error] #3 from Pokémon Promo averages around $1260. A Grade 9 copy runs about null, and a PSA 10 gem-mint commands null.
What drives the price
Centering, corners, edges, and surface decide a card's grade — and the grade decides the price. The jump from raw to PSA 10 can be 5–20×, so condition is everything. Holos, first editions, and shadowless prints carry the biggest premiums.
Price guide
What this actually trades for — sold values by condition vs. what sellers are asking today
| Condition | Value | Based on |
|---|---|---|
| Ungraded | $1,260 | eBay sold comps |
| Live asking — low / typical / high | $36.95 / $470 / $40,000 | 16 live eBay listings ↗ |
Market check: As of July 19, 2026, 16 live eBay listings ask $36.95–$40,000.00 (median $470.00).
Frequently asked questions
- What is the current estimated value of this Mewtwo promo?
- The ungraded Mewtwo [Inverted Stamp Error] #3 is valued at $1260.
- Is this item part of a specific Pokémon set?
- This item is categorized as a Pokémon Promo.
- What game is this collectible associated with?
- This Pokémon Promo is associated with the Pokémon game franchise.
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