{
 "snapshot": "2026-10-02",
 "currency": "USD",
 "market": "United States retail listings, lab-grown, GIA or IGI graded",
 "source": "The Diamond Price. (2026). Diamond Price Index [Data set]. https://thediamondprice.com/data/diamond-price-index",
 "licence": "CC BY 4.0",
 "ladder": [
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   230.0,
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  [
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   4440.0,
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  ],
  [
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   6100.0,
   6160.0,
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 ],
 "ladder_columns": [
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  "median",
  "p75",
  "listings"
 ],
 "shape_vs_round": {
  "round": 1.0,
  "emerald": 0.92,
  "oval": 1.08,
  "princess": 1.08,
  "cushion": 1.1,
  "pear": 1.1,
  "radiant": 1.1,
  "marquise": 1.1,
  "heart": 1.13
 },
 "band_vs_premium": {
  "top": 2.17,
  "premium": 1.0,
  "mainstream": 0.68
 },
 "band_rows": {
  "top": 11,
  "mainstream": 14
 },
 "files": {
  "csv": {
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   "sha256": "1fa489ecfa121b1e839cca807bf1e9cf2b5a22da525d43d5d14dbedefa79aaac"
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  "json": {
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   "sha256": "c9cdf05d6c280a98cc60925a01d577376d3cf2ff4a7532142e2b7d9180027aa6"
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  "index_page": {
   "name": "tdp-index-page-2026-10-02.html",
   "sha256": "e4f398783ea2d2001f46e83f208ae486636390d950e76e58ee9fbfcac4d15282"
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  "lab_page": {
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   "sha256": "8c84a505c5ba81c7d636ccbbd74f57cc35fd43478f6a577ee71d6fd2ad33c59d"
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 }
}