Pokémon TCG · XY Base Set · #123
Professor's Letter #123 price
XY Base Set123Market prices
90-day range · TCGplayer
Professor's Letter (#123, Uncommon) is a card from Pokémon set XY Base Set. Near Mint (Normal), it has a market price of about $0.31 on TCGplayer and €0.32 on Cardmarket (updated October 15, 2026). Over the last 7 days, its TCGplayer market price rose 3.3% and the Cardmarket price trend fell 21.9%. Over the last 30 days, its TCGplayer market price rose 10.7% and the Cardmarket price trend rose 93.9%. Over the last 90 days, its TCGplayer market price rose 3.3% and the Cardmarket price trend rose 33.3%. Its 90-day TCGplayer market price range is $0.25 to $0.31. Its 90-day Cardmarket price trend range is €0.08 to €0.43. Graded, a PSA 10 is worth about $48.89. Among the 42 Uncommon cards of XY Base Set, it is the 24th most valuable. Converted to dollars, its Cardmarket price is 15.7% higher than its TCGplayer price.
Professor's Letter #123 prices by finish
| Finish | TCGplayer | Cardmarket |
|---|---|---|
| Normal | $0.31 | €0.32 |
| Reverse Holo | $1.85 | €2.47 |
Near Mint prices: TCGplayer market price, Cardmarket price trend, updated October 15, 2026.
Price changes by finish
| Finish | Price | 7 days | 30 days | 90 days | 90-day range |
|---|---|---|---|---|---|
| Normal | TCGplayer market price | +3.3% | +10.7% | +3.3% | $0.25 – $0.31 |
| Normal | Cardmarket price trend | −21.9% | +93.9% | +33.3% | €0.08 – €0.43 |
| Reverse Holo | TCGplayer market price | +0.0% | +0.0% | −2.6% | $1.85 – $2.00 |
| Reverse Holo | Cardmarket price trend | +0.0% | +3.4% | −0.4% | €2.26 – €2.66 |
Change of the same Near Mint price (same market, same finish) against 7, 30 and 90 days ago; range: its lowest and highest daily value over the last 90 days. Only where the price history supports a figure; lowest listings have none.
Follow your own copies, graded or raw, and what they are worth in Sparkl.
Professor's Letter #123 graded prices
| Grade | PSA | BGS | CGC | SGC |
|---|---|---|---|---|
| 10 | $48.89 | $64.00 | $29.00 | $29.00 |
US dollars, from recent graded sales and graded market prices.
PSA has graded 3 copies of this card: 1 earned a 10 (33%), 2 a 9.
Professor's Letter #123 price history
About this card
- Set
- XY Base Set
- Number
- 123
- Rarity
- Uncommon
- Finishes
- Normal, Reverse Holo
- Rank in its rarity
- 24th of 42 Uncommon cards
- Against its rarity’s median
- About the median ($0.33)
- Cardmarket vs TCGplayer
- +15.7% after conversion ($1.1208 per euro)
- Finish spread
- Normal $0.31 to Reverse Holo $1.85 (6.0×, TCGplayer)
- Released
- February 5, 2014
- Print language
- English
How this page is made: Near Mint prices from TCGplayer and Cardmarket, refreshed daily; ranks, medians and comparisons are computed by Sparkl from those prices.
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Most valuable XY Base Set cards
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- Emolga-EX#143 · Rare Ultra · $55.21
- Skarmory-EX#145 · Rare Ultra · $41.10
Next to Professor's Letter #123 in XY Base Set
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- Shadow Circle#126 · Uncommon · $0.24
- Shauna#127 · Uncommon · $0.17