{
 "schemaVersion": 1,
 "url": "https://www.moonstonehq.com/card/basep-14",
 "dataUrl": "https://www.moonstonehq.com/card/basep-14/data.json",
 "asOf": "2026-09-27",
 "card": {
  "id": "basep-14",
  "name": "Mewtwo",
  "number": "14",
  "printedTotal": 53,
  "setName": "Wizards Black Star Promos",
  "language": "en",
  "illustrator": "Benimaru Itoh",
  "image": "https://assets.tcgdex.net/en/base/basep/14/high.webp",
  "tcgplayerProductId": "87417"
 },
 "marketPrice": {
  "value": 28.57,
  "currency": "USD",
  "condition": "near mint",
  "asOf": "2026-09-27",
  "source": "TCGplayer market price, recorded daily"
 },
 "psa10": {
  "price": 600,
  "currency": "USD",
  "sales": 15,
  "kind": "provider",
  "windowDays": null,
  "median": null,
  "lastSale": null,
  "divergesFrom": null,
  "asOf": "2026-09-26"
 },
 "psa9": {
  "price": 181.26,
  "currency": "USD",
  "sales": 16,
  "kind": "recent",
  "windowDays": 90,
  "median": 181.26,
  "lastSale": null,
  "divergesFrom": null,
  "asOf": "2026-09-26"
 },
 "gradedMedians": [
  {
   "company": "ACE",
   "grade": "10",
   "median": 539.16,
   "currency": "USD",
   "sales": 9,
   "asOf": "2026-09-26"
  },
  {
   "company": "BGS",
   "grade": "8.5",
   "median": 45.84,
   "currency": "USD",
   "sales": 2,
   "asOf": "2026-09-26"
  },
  {
   "company": "CGC",
   "grade": "10",
   "median": 418.22,
   "currency": "USD",
   "sales": 5,
   "asOf": "2026-09-26"
  },
  {
   "company": "CGC",
   "grade": "4",
   "median": 5.5,
   "currency": "USD",
   "sales": 1,
   "asOf": "2026-09-26"
  },
  {
   "company": "CGC",
   "grade": "5",
   "median": 24.25,
   "currency": "USD",
   "sales": 3,
   "asOf": "2026-09-26"
  },
  {
   "company": "CGC",
   "grade": "6",
   "median": 23.37,
   "currency": "USD",
   "sales": 3,
   "asOf": "2026-09-26"
  },
  {
   "company": "CGC",
   "grade": "6.5",
   "median": 25.5,
   "currency": "USD",
   "sales": 3,
   "asOf": "2026-09-26"
  },
  {
   "company": "CGC",
   "grade": "7",
   "median": 33,
   "currency": "USD",
   "sales": 4,
   "asOf": "2026-09-26"
  },
  {
   "company": "CGC",
   "grade": "7.5",
   "median": 19.99,
   "currency": "USD",
   "sales": 2,
   "asOf": "2026-09-26"
  },
  {
   "company": "CGC",
   "grade": "8",
   "median": 46.57,
   "currency": "USD",
   "sales": 8,
   "asOf": "2026-09-26"
  },
  {
   "company": "CGC",
   "grade": "8.5",
   "median": 29,
   "currency": "USD",
   "sales": 9,
   "asOf": "2026-09-26"
  },
  {
   "company": "CGC",
   "grade": "9",
   "median": 41.92,
   "currency": "USD",
   "sales": 13,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "1",
   "median": 62.27,
   "currency": "USD",
   "sales": 14,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "10",
   "median": 600,
   "currency": "USD",
   "sales": 15,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "2",
   "median": 56.98,
   "currency": "USD",
   "sales": 4,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "3",
   "median": 37.5,
   "currency": "USD",
   "sales": 6,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "3.5",
   "median": 36,
   "currency": "USD",
   "sales": 1,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "4",
   "median": 25.99,
   "currency": "USD",
   "sales": 6,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "5",
   "median": 35,
   "currency": "USD",
   "sales": 14,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "6",
   "median": 49.81,
   "currency": "USD",
   "sales": 39,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "7",
   "median": 50.5,
   "currency": "USD",
   "sales": 30,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "8",
   "median": 79.88,
   "currency": "USD",
   "sales": 50,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "8.5",
   "median": 115,
   "currency": "USD",
   "sales": 1,
   "asOf": "2026-09-26"
  },
  {
   "company": "PSA",
   "grade": "9",
   "median": 161.75,
   "currency": "USD",
   "sales": 44,
   "asOf": "2026-09-26"
  },
  {
   "company": "TAG",
   "grade": "5",
   "median": 21.5,
   "currency": "USD",
   "sales": 4,
   "asOf": "2026-09-26"
  },
  {
   "company": "TAG",
   "grade": "6",
   "median": 35,
   "currency": "USD",
   "sales": 1,
   "asOf": "2026-09-26"
  },
  {
   "company": "TAG",
   "grade": "7",
   "median": 38.68,
   "currency": "USD",
   "sales": 1,
   "asOf": "2026-09-26"
  },
  {
   "company": "TAG",
   "grade": "8",
   "median": 282.47,
   "currency": "USD",
   "sales": 1,
   "asOf": "2026-09-26"
  },
  {
   "company": "TAG",
   "grade": "8.5",
   "median": 350,
   "currency": "USD",
   "sales": 1,
   "asOf": "2026-09-26"
  }
 ],
 "population": {
  "company": "PSA",
  "total": 4741,
  "gem": 322,
  "psa9": 925,
  "gemRatePercent": 6.8,
  "asOf": null
 },
 "priceSeries": {
  "granularity": "daily",
  "points": 29,
  "firstDay": "2026-08-30",
  "lastDay": "2026-09-27",
  "return30dPercent": 1.1
 },
 "facts": [
  {
   "key": "marketPrice",
   "label": "Market price",
   "value": "$28.57",
   "number": 28.57,
   "unit": "USD",
   "basis": "TCGplayer market price for this printing, near mint",
   "asOf": "2026-09-27"
  },
  {
   "key": "psa10Median",
   "label": "PSA 10 market price",
   "value": "$600",
   "number": 600,
   "unit": "USD",
   "basis": "A market price of $600 over 15 recorded sales verified as this card",
   "asOf": "2026-09-26"
  },
  {
   "key": "psa9Median",
   "label": "PSA 9 90-day sold median",
   "value": "$181.26",
   "number": 181.26,
   "unit": "USD",
   "basis": "A 90-day median of $181.26 across 16 sales verified as this card",
   "asOf": "2026-09-26"
  },
  {
   "key": "psa10Premium",
   "label": "PSA 10 premium over raw",
   "value": "21x",
   "number": 21,
   "unit": "multiple",
   "basis": "The PSA 10 figure above (a market price of $600 over 15 recorded sales) divided by the raw market price",
   "asOf": "2026-09-27"
  },
  {
   "key": "psaPopulation",
   "label": "PSA population",
   "value": "4,741",
   "number": 4741,
   "unit": "count",
   "basis": "Copies on the PSA registry, all grades",
   "asOf": null
  },
  {
   "key": "psaGemRate",
   "label": "PSA gem rate",
   "value": "6.8%",
   "number": 6.8,
   "unit": "percent",
   "basis": "322 of 4,741 submissions graded 10",
   "asOf": null
  },
  {
   "key": "recordedPricePoints",
   "label": "Recorded price readings",
   "value": "29",
   "number": 29,
   "unit": "count",
   "basis": "One reading per day between August 30, 2026 and September 27, 2026",
   "asOf": "2026-09-27"
  },
  {
   "key": "return30d",
   "label": "30-day price move",
   "value": "+1.1%",
   "number": 1.1,
   "unit": "percent",
   "basis": "Trailing 30 days of moonstone's own recorded daily series",
   "asOf": "2026-09-27"
  }
 ],
 "questions": [
  {
   "q": "How much is Mewtwo 14/53 from Wizards Black Star Promos worth?",
   "a": "$28.57 raw, as of September 27, 2026. That is the recorded TCGplayer market price for this printing in near mint condition, not an ask moonstone sets."
  },
  {
   "q": "What is a PSA 10 Mewtwo 14/53 worth?",
   "a": "$600, a market price of $600 over 15 recorded sales we have verified as this card. That is 21x the raw price."
  },
  {
   "q": "How many Mewtwo 14/53 has PSA graded?",
   "a": "4,741 copies sit on the PSA registry across all grades, and 6.8% of them came back a 10 (322 tens)."
  },
  {
   "q": "Is it worth grading Mewtwo 14/53?",
   "a": "At $28.57 plus PSA Standard $59.99 ($88.56 all-in), against a $600 PSA 10 and a $181.26 PSA 9 each netted for eBay's published selling fee, a PSA 9 alone clears the cost at $181.26 before fees, so no tens are needed. The registry's recorded gem rate is 6.8%. Shipping and insurance, to PSA and to the buyer, are not counted. That is arithmetic on recorded figures and published fees, not advice."
  }
 ],
 "methodology": {
  "marketPrice": "The daily recorded TCGplayer market price for this exact printing, in USD, near mint. moonstone sells no cards and quotes no ask of its own.",
  "gradedMedians": "Medians of verified sold listings for that grade, never a multiplier applied to the raw price. Every median carries the number of sales behind it, and a figure built on fewer than 2 sales is reported as a single sale rather than as a median.",
  "population": "A snapshot of the PSA registry for this card. A gem rate is reported only when the registry row breaks out the tens; an absent breakdown is reported as absent, never as zero.",
  "priceSeries": "moonstone's own daily price tape, one reading per day. `points` is how many days we hold, not how many days the card has existed."
 },
 "license": "https://www.moonstonehq.com/legal/terms",
 "disclaimer": "moonstone is independent research and market data, not financial, investment, tax or legal advice. Collectibles are speculative, illiquid and volatile."
}