{
  "checked_at": "2026-10-21",
  "scope": "Four retailers, eight type-specific or explicitly scoped summaries. These summarize seller statements, not equivalence, measured compliance or quality rankings.",
  "records": [
    {
      "retailer": "Pearl Paradise",
      "pearl_type": "Akoya",
      "grade_scope": "AAA",
      "luster": "Sharp reflections",
      "surface": "At least 95% clean",
      "shape": "Round",
      "nacre": "Visibly thick; no item measurement established",
      "matching": "Good through excellent",
      "limitation": "Seller thresholds; not an independent inspection.",
      "source": "https://www.pearlparadise.com/pages/pearl-grading",
      "access_method": "indexed-primary-page"
    },
    {
      "retailer": "Pearl Paradise",
      "pearl_type": "Freshwater",
      "grade_scope": "AAA",
      "luster": "Sharp reflections",
      "surface": "At least 95% clean",
      "shape": "Round",
      "nacre": "Read cultivation method separately",
      "matching": "Excellent",
      "limitation": "Freshadama is a separate seller trade name, not a universal grade.",
      "source": "https://www.pearlparadise.com/pages/pearl-grading",
      "access_method": "indexed-primary-page"
    },
    {
      "retailer": "Pure Pearls",
      "pearl_type": "Akoya",
      "grade_scope": "A–AAA; Hanadama discussed separately",
      "luster": "Type-specific evaluation",
      "surface": "No numeric Akoya threshold recovered from the text chart",
      "shape": "Roundness is evaluated",
      "nacre": "Visual assessment; the guide distinguishes laboratory-tested Hanadama",
      "matching": "Check the actual strand",
      "limitation": "The overview chart is not a substitute for type-specific criteria.",
      "source": "https://www.purepearls.com/pages/pearl-grading",
      "access_method": "direct-primary-page"
    },
    {
      "retailer": "Pure Pearls",
      "pearl_type": "Freshwater",
      "grade_scope": "A–AAAA framework",
      "luster": "Overview: AAA strong; AAAA exceptional",
      "surface": "Overview: AAA 90–95%+; AAAA 98%+ clean",
      "shape": "Overview: AAA near-round/round; AAAA round",
      "nacre": "No item thickness verified",
      "matching": "Overview: excellent",
      "limitation": "These are the page’s overview benchmarks; confirm their application to the exact product.",
      "source": "https://www.purepearls.com/pages/pearl-grading",
      "access_method": "direct-primary-page"
    },
    {
      "retailer": "Pearls of Joy",
      "pearl_type": "Akoya",
      "grade_scope": "AAA",
      "luster": "Strong, defined reflections",
      "surface": "At least 95% clean",
      "shape": "Shape contributes to assessment",
      "nacre": "No item thickness verified",
      "matching": "Very little variation across strand",
      "limitation": "The Akoya section and later multi-type section use different grade mappings; no cross-store conversion is inferred.",
      "source": "https://www.pearlsofjoy.com/pages/pearl-grading",
      "access_method": "direct-primary-page"
    },
    {
      "retailer": "Pearls of Joy",
      "pearl_type": "Freshwater",
      "grade_scope": "AAAA",
      "luster": "Strong, defined reflections",
      "surface": "At least 95% clean in its freshwater section",
      "shape": "Near-round to round",
      "nacre": "Guide describes solid nacre; verify item nucleation",
      "matching": "Little variation in the finished set",
      "limitation": "Do not extend the guide’s broad freshwater nacre wording to every modern bead-nucleated pearl.",
      "source": "https://www.pearlsofjoy.com/pages/pearl-grading",
      "access_method": "direct-primary-page"
    },
    {
      "retailer": "AKWAYA",
      "pearl_type": "Akoya",
      "grade_scope": "AAA in A / AA / AA+ / AAA scale",
      "luster": "Strong to excellent",
      "surface": "Approximately 95%+ visually clean",
      "shape": "Round, minimal deviation",
      "nacre": "Very good through excellent appearance; no obvious thin areas",
      "matching": "Excellent",
      "limitation": "Methodology notes legacy-listing reconciliation; brief listing attributes do not prove numeric compliance.",
      "source": "https://www.akwaya.com/pages/akwaya-pearl-grading-methodology",
      "access_method": "direct-primary-page"
    },
    {
      "retailer": "AKWAYA",
      "pearl_type": "Freshwater",
      "grade_scope": "AAAA in A / AA / AAA / AAAA scale",
      "luster": "Strong to excellent",
      "surface": "Approximately 95%+ visually clean",
      "shape": "Conformity to the stated shape",
      "nacre": "Excellent for type; cultivation method matters",
      "matching": "Excellent",
      "limitation": "Thresholds are seller-defined; confirm which variant and characteristics are actually documented.",
      "source": "https://www.akwaya.com/pages/akwaya-pearl-grading-methodology",
      "access_method": "direct-primary-page"
    }
  ]
}