[
 {
  "name": "r64-0-marquise-solitaire",
  "cut": "marquise",
  "carat": 2.5,
  "standard": "US",
  "size": 7.0,
  "archetype": "solitaire",
  "metal": "platinum_950",
  "prongs": 4,
  "band_width": 2.0,
  "band_thickness": 1.2,
  "reference": "artifacts/eval-dashboard/refs/r64-0-marquise-solitaire.jpg",
  "reference_page": "https://renaissancejewel.com/products/platinum-2-5-carat-marquise-cut-solitaire-ring-with-cathedral-setting-and-pave-band",
  "query": "2.5 carat marquise solitaire engagement ring platinum",
  "camera": "25:20",
  "shank": {
   "type": "band"
  },
  "head": {
   "type": "prong"
  },
  "accents": [
   {
    "type": "pave",
    "arc_deg": [
     "auto",
     75
    ],
    "melee_mm": 0.55
   }
  ]
 },
 {
  "name": "r64-1-radiant-halo",
  "cut": "radiant",
  "carat": 2.5,
  "standard": "US",
  "size": 5.0,
  "archetype": "halo",
  "metal": "18k_white_gold",
  "prongs": 4,
  "band_width": 1.9,
  "band_thickness": 1.4,
  "reference": "artifacts/eval-dashboard/refs/r64-1-radiant-halo.png",
  "reference_page": "reused verified r52 radiant-halo packshot (no accessible princess-halo product image)",
  "query": "1.25 carat radiant halo engagement ring white gold",
  "camera": "25:20"
 },
 {
  "name": "r64-2-round-solitaire",
  "cut": "round",
  "carat": 1.5,
  "standard": "US",
  "size": 5.0,
  "archetype": "solitaire",
  "metal": "18k_yellow_gold",
  "prongs": 4,
  "band_width": 1.5,
  "band_thickness": 1.4,
  "reference": "artifacts/eval-dashboard/refs/r64-2-round-solitaire.jpg",
  "reference_page": "reused curated reference",
  "query": "1.5 carat round solitaire engagement ring 18k yellow gold",
  "camera": "25:20"
 },
 {
  "name": "r64-3-asscher-three_stone",
  "cut": "asscher",
  "carat": 1.0,
  "standard": "US",
  "size": 5.0,
  "archetype": "three_stone",
  "metal": "18k_white_gold",
  "prongs": 4,
  "band_width": 1.9,
  "band_thickness": 1.5,
  "reference": "artifacts/eval-dashboard/refs/r64-3-asscher-three_stone.jpg",
  "reference_page": "https://www.vrai.com/engagement-ring/three-stone/asscher-yellow-gold-39260578742365",
  "query": "1.0 carat asscher three_stone engagement ring 18k white gold",
  "camera": "25:20"
 },
 {
  "name": "r64-4-pear-halo",
  "cut": "pear",
  "carat": 1.25,
  "standard": "US",
  "size": 7.0,
  "archetype": "halo",
  "metal": "18k_white_gold",
  "prongs": 4,
  "band_width": 1.7,
  "band_thickness": 1.4,
  "reference": "artifacts/eval-dashboard/refs/r64-4-pear-halo.jpg",
  "reference_page": "https://diamondsbyrothschild.com/products/pear-shaped-halo-engagement-ring",
  "query": "1.25 carat pear halo engagement ring 18k white gold",
  "camera": "25:20",
  "shank": {
   "type": "band"
  },
  "head": {
   "type": "halo",
   "melee_mm": 0.8
  }
 },
 {
  "name": "r64-5-emerald-pave-band_solitaire",
  "cut": "emerald",
  "carat": 2.0,
  "standard": "US",
  "size": 5.0,
  "archetype": "pav\u00e9-band solitaire",
  "metal": "18k_white_gold",
  "prongs": 4,
  "band_width": 1.4,
  "band_thickness": 1.4,
  "reference": "artifacts/eval-dashboard/refs/r64-5-emerald-pave-band_solitaire.jpg",
  "reference_page": "https://www.vrai.com/engagement-ring/classic-4-prong-dome/emerald-white-gold-32851256639581",
  "query": "2.0 carat emerald pav\u00e9-band solitaire engagement ring 18k white gold",
  "camera": "25:20"
 },
 {
  "name": "r64-6-elongated_cushion-halo",
  "cut": "elongated_cushion",
  "carat": 0.75,
  "standard": "US",
  "size": 5.5,
  "archetype": "halo",
  "metal": "14k_rose_gold",
  "prongs": 4,
  "band_width": 1.8,
  "band_thickness": 1.5,
  "reference": "artifacts/eval-dashboard/refs/r64-6-elongated_cushion-halo.jpg",
  "reference_page": "reused curated reference",
  "query": "0.75 carat elongated cushion halo engagement ring 14k rose gold",
  "camera": "25:20"
 },
 {
  "name": "r64-7-round-three_stone",
  "cut": "round",
  "carat": 3.0,
  "standard": "US",
  "size": 5.5,
  "archetype": "three_stone",
  "metal": "18k_yellow_gold",
  "prongs": 4,
  "band_width": 1.6,
  "band_thickness": 1.5,
  "reference": "artifacts/eval-dashboard/refs/r64-7-round-three_stone.jpg",
  "reference_page": "reused curated reference",
  "query": "3.0 carat round three_stone engagement ring 18k yellow gold",
  "camera": "25:20",
  "shank": {
   "type": "band"
  },
  "head": {
   "type": "prong"
  },
  "accents": [
   {
    "type": "side_stones"
   },
   {
    "type": "pave",
    "arc_deg": [
     "auto",
     110
    ],
    "melee_mm": 0.5
   }
  ]
 }
]