{
  "guide_published_at": "2026-10-21",
  "prices_checked_at": "2026-10-21",
  "source_url": "https://pearlpedia.com/data/necklace-comparisons-2026-10-21.json",
  "source_sha256": "def5fc187d324ad9b6b95a423080142a678f08df1a3c106a54b721267e6cc8d6",
  "source_release_commit": "51d52ff33759d0a0383a1b938c10550bfb5ff15e",
  "methodology": "Purposive sample derived from 20 previously audited listings. Group full strands by pearl type, exact stated size range, length, clasp metal and design, color and currency. Unknown clasp designs remain standalone examples and cannot be pooled. Seller grades are retained as claims, not normalized into quality equivalence. No market average, quality-adjusted price, per-pearl price or currency conversion is calculated.",
  "counts": {
    "source_products": 20,
    "full_strand_products": 10,
    "full_strand_configurations": 12,
    "full_strand_groups": 10,
    "other_construction_products": 2,
    "excluded_products": 8,
    "additional_previously_checked_variants": 2
  },
  "type_coverage": {
    "akoya": 4,
    "freshwater": 8,
    "tahitian": 0,
    "south-sea": 0
  },
  "records": [
    {
      "pearl_type": "akoya",
      "retailer": "The Pearl Source",
      "product_name": "7.0–7.5mm Japanese Akoya White Pearl Necklace",
      "product_url": "https://www.thepearlsource.com/7.0-7.5mm-japanese-akoya-white-pearl-necklace-aaa-quality.html",
      "price_display": "USD 1,380 listed",
      "pearl_details": "7.0–7.5mm Japanese Akoya, white; seller grade AAA",
      "setting": "Lengths 16–36 inches; 14K gold clasp choices",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "Listing price; selected length and clasp must be confirmed",
      "availability": "Retailer publishes an in-stock status",
      "source_note": "The listing offers multiple configurations; the extracted price is not a matched 18-inch quote.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.thepearlsource.com/7.0-7.5mm-japanese-akoya-white-pearl-necklace-aaa-quality.html"
        }
      ],
      "id": "akoya-the-pearl-source",
      "currency": "USD",
      "observed_price": 1380.0,
      "sample_status": "excluded",
      "selection_note": "The price was not tied to a confirmed length and clasp selection."
    },
    {
      "pearl_type": "akoya",
      "retailer": "Pure Pearls",
      "product_name": "White Japanese Akoya Pearl Necklace, 7.0–7.5mm",
      "product_url": "https://www.purepearls.com/products/white-akoya-pearl-necklace-7-0-7-5mm?variant=67707310211309",
      "price_display": "USD 2,190",
      "pearl_details": "7.0–7.5mm Japanese Akoya, white; seller grade AAA",
      "setting": "18-inch strand; ball clasp, 14K white gold",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "18-inch / ball clasp in 14K white gold",
      "availability": "Retailer lists the selected variant as available",
      "source_note": "Other clasp choices cost more; retailer grade remains a seller claim.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.purepearls.com/products/white-akoya-pearl-necklace-7-0-7-5mm"
        },
        {
          "label": "Official variant data",
          "url": "https://www.purepearls.com/products/white-akoya-pearl-necklace-7-0-7-5mm.js"
        }
      ],
      "id": "akoya-pure-pearls",
      "currency": "USD",
      "observed_price": 2190.0,
      "sample_status": "full-strand",
      "size_mm": [
        7,
        7.5
      ],
      "length_in": 18,
      "clasp_metal": "14K white gold",
      "clasp_design": "ball",
      "color": "white",
      "price_basis": "selected variant",
      "selection_note": "Matched descriptive specifications do not establish equal pearl quality or equivalent seller grades."
    },
    {
      "pearl_type": "akoya",
      "retailer": "Pearl Paradise",
      "product_name": "6.5–7.0mm AAA White Akoya Pearl Necklace",
      "product_url": "https://www.pearlparadise.com/products/65-70-mm-18-inch-aaa-white-akoya-pearl-necklace",
      "price_display": "Price not reconfirmed",
      "pearl_details": "6.5–7.0mm Japanese Akoya, white; seller grade AAA",
      "setting": "18-inch strand; 14K gold clasp options",
      "checked_at": "2026-10-21",
      "access_method": "indexed-primary-page",
      "construction": "Full strand",
      "configuration": "No current price recovered from indexed official text",
      "availability": "Live stock not confirmed",
      "source_note": "The official page could not be retrieved directly. Indexed official text supports the size and 18-inch construction, not current price or stock.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.pearlparadise.com/products/65-70-mm-18-inch-aaa-white-akoya-pearl-necklace"
        }
      ],
      "id": "akoya-pearl-paradise",
      "currency": null,
      "observed_price": null,
      "sample_status": "excluded",
      "selection_note": "Price and live stock were not reconfirmed; only indexed official specifications were available."
    },
    {
      "pearl_type": "akoya",
      "retailer": "Pearls of Joy",
      "product_name": "White Japanese Akoya Pearl Necklace, 6.5–7.0mm",
      "product_url": "https://www.pearlsofjoy.com/products/akoya-pearl-necklace-6-5-7-0mm?variant=43229914300477",
      "price_display": "USD 1,910",
      "pearl_details": "6.5–7.0mm Japanese Akoya, white; seller grade AAA",
      "setting": "18-inch strand; ball clasp, 14K white gold",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "18-inch / ball clasp in 14K white gold",
      "availability": "Retailer lists the selected variant as available",
      "source_note": "Match the pearl diameter before drawing a value conclusion.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.pearlsofjoy.com/products/akoya-pearl-necklace-6-5-7-0mm"
        },
        {
          "label": "Official variant data",
          "url": "https://www.pearlsofjoy.com/products/akoya-pearl-necklace-6-5-7-0mm.js"
        }
      ],
      "id": "akoya-pearls-of-joy",
      "currency": "USD",
      "observed_price": 1910.0,
      "sample_status": "full-strand",
      "size_mm": [
        6.5,
        7
      ],
      "length_in": 18,
      "clasp_metal": "14K white gold",
      "clasp_design": "ball",
      "color": "white",
      "price_basis": "selected variant",
      "selection_note": "Matched descriptive specifications do not establish equal pearl quality or equivalent seller grades."
    },
    {
      "pearl_type": "akoya",
      "retailer": "AKWAYA",
      "product_name": "7.0–7.5mm AA White Akoya Necklace — 18-inch, 14K Yellow Gold",
      "product_url": "https://www.akwaya.com/products/14k-yellow-gold-7-0-7-5mm-white-akoya-cultured-pearl-high-luster-necklace-18-length-aa-quality",
      "price_display": "USD 1,289",
      "pearl_details": "7.0–7.5mm Akoya, white; seller grade AA",
      "setting": "18-inch strand; 14K yellow-gold fishhook clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "18-inch / 14K yellow gold; redirected current product",
      "availability": "Retailer publishes an in-stock status",
      "source_note": "The former AAA URL now leads to an AA listing. Read its current characteristics; the grade does not establish measured nacre thickness.",
      "sources": [
        {
          "label": "Current official product page",
          "url": "https://www.akwaya.com/products/14k-yellow-gold-7-0-7-5mm-white-akoya-cultured-pearl-high-luster-necklace-18-length-aa-quality"
        }
      ],
      "id": "akoya-akwaya",
      "currency": "USD",
      "observed_price": 1289.0,
      "sample_status": "full-strand",
      "size_mm": [
        7,
        7.5
      ],
      "length_in": 18,
      "clasp_metal": "14K yellow gold",
      "clasp_design": "fishhook",
      "color": "white",
      "price_basis": "fixed listing",
      "selection_note": "Matched descriptive specifications do not establish equal pearl quality or equivalent seller grades."
    },
    {
      "pearl_type": "akoya",
      "retailer": "House of Pearls",
      "product_name": "7.5–8.0mm Japanese Akoya Pearl Tincup Constellations Necklace",
      "product_url": "https://houseofpearls.com/products/7-5-8-0mm-japanese-akoya-pearl-tincup-constellations-necklace-18k-gold?variant=52544672333956",
      "price_display": "USD 743",
      "pearl_details": "13 Japanese Akoya pearls, 7.5–8.0mm; seller grade AAAA",
      "setting": "43cm chain; 18K yellow gold",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Station necklace",
      "configuration": "18K yellow gold / 43cm",
      "availability": "Retailer lists the selected variant as available",
      "source_note": "The 45cm variant is USD 783. Thirteen pearls are not comparable to a full strand on price alone.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://houseofpearls.com/products/7-5-8-0mm-japanese-akoya-pearl-tincup-constellations-necklace-18k-gold"
        },
        {
          "label": "Official variant data",
          "url": "https://houseofpearls.com/products/7-5-8-0mm-japanese-akoya-pearl-tincup-constellations-necklace-18k-gold.js"
        }
      ],
      "id": "akoya-house-of-pearls",
      "currency": "USD",
      "observed_price": 743.0,
      "sample_status": "other-construction",
      "selection_note": "Shown separately; not part of the full-strand groups."
    },
    {
      "pearl_type": "akoya",
      "retailer": "Premium Pearl",
      "product_name": "6.0–6.5mm White Hanadama Akoya Necklace — 14K Gold",
      "product_url": "https://www.premiumpearl.com/products/akoya-pearl-necklaces-1302",
      "price_display": "USD 1,800 listed",
      "pearl_details": "6.0–6.5mm Japanese Akoya, white; seller designation Hanadama",
      "setting": "17- or 18-inch strand; 14K gold clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "Displayed base configuration; confirm size, length and clasp",
      "availability": "Ordering control shown; live stock not independently confirmed",
      "source_note": "The old item 1100 returned 404. Item 1302 is a different product; a seller certificate of authenticity is not by itself a named laboratory Hanadama report.",
      "sources": [
        {
          "label": "Replacement official product page",
          "url": "https://www.premiumpearl.com/products/akoya-pearl-necklaces-1302"
        }
      ],
      "id": "akoya-premium-pearl",
      "currency": "USD",
      "observed_price": 1800.0,
      "sample_status": "excluded",
      "selection_note": "Displayed base price was not resolved to one exact length and clasp configuration."
    },
    {
      "pearl_type": "akoya",
      "retailer": "PearlsOnly",
      "product_name": "6.5–7mm AAA Japanese Akoya Cultured Pearl Necklace in White",
      "product_url": "https://www.pearlsonly.com/6.5-7mm-aaa-quality-japanese-akoya-cultured-pearl-necklace-in-white.html",
      "price_display": "USD 1,369 listed",
      "pearl_details": "6.5–7.0mm Japanese Akoya, white; seller grade AAA",
      "setting": "16-inch base strand; gold-filled round clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "16-inch base display; optional clasp upgrades extra",
      "availability": "Retailer page says ships immediately",
      "source_note": "Do not compare its headline price to an 18-inch solid-gold-clasp strand without adjusting the configuration.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.pearlsonly.com/6.5-7mm-aaa-quality-japanese-akoya-cultured-pearl-necklace-in-white.html"
        }
      ],
      "id": "akoya-pearlsonly",
      "currency": "USD",
      "observed_price": 1369.0,
      "sample_status": "full-strand",
      "size_mm": [
        6.5,
        7
      ],
      "length_in": 16,
      "clasp_metal": "gold-filled",
      "clasp_design": "round",
      "color": "white",
      "price_basis": "listed base configuration",
      "selection_note": "Matched descriptive specifications do not establish equal pearl quality or equivalent seller grades."
    },
    {
      "pearl_type": "akoya",
      "retailer": "MIKIMOTO",
      "product_name": "4.0–4.5mm Akoya Necklace — 18K White Gold Clasp",
      "product_url": "https://www.mikimotoamerica.com/us_en/akoya-cultured-pearl-necklace-with-18k-white-gold-clasp",
      "price_display": "USD 3,500 listed",
      "pearl_details": "4.0–4.5mm Akoya cultured pearls",
      "setting": "18K white-gold clasp; length not recovered",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "Listed item MZQ10099AXXW; length unconfirmed",
      "availability": "Ordering control shown; stock not independently confirmed",
      "source_note": "The current official item is 4.0–4.5mm, not a size-matched substitute for a 7mm strand. Ask for the length before comparing.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.mikimotoamerica.com/us_en/akoya-cultured-pearl-necklace-with-18k-white-gold-clasp"
        }
      ],
      "id": "akoya-mikimoto",
      "currency": "USD",
      "observed_price": 3500.0,
      "sample_status": "excluded",
      "selection_note": "The item length was not recovered, so the listed price cannot enter a length-matched group."
    },
    {
      "pearl_type": "akoya",
      "retailer": "WSP",
      "product_name": "Hanadama Akoya Pearl Necklace 7.0–7.5mm",
      "product_url": "https://wsp-global.jp/products/hana-pnec35?variant=43986630869174",
      "price_display": "JPY 429,000 listed",
      "pearl_details": "7.0–7.5mm Hanadama Akoya; report inclusion is seller-stated",
      "setting": "43cm; seller lists silver 925 or stainless steel clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "Japan / JPY storefront; listed out-of-stock variant",
      "availability": "Retailer lists this variant as unavailable",
      "source_note": "Do not convert this JPY price into a USD comparison without a dated exchange rate, shipping and import costs; confirm exact clasp and report issuer if restocked.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://wsp-global.jp/products/hana-pnec35"
        },
        {
          "label": "Official variant data",
          "url": "https://wsp-global.jp/products/hana-pnec35.js"
        }
      ],
      "id": "akoya-wsp",
      "currency": "JPY",
      "observed_price": 429000.0,
      "sample_status": "excluded",
      "selection_note": "The variant was unavailable and priced in JPY; no currency conversion or restock price is assumed."
    },
    {
      "pearl_type": "freshwater",
      "retailer": "The Pearl Source",
      "product_name": "7.0–7.5mm AAA White Freshwater Pearl Necklace",
      "product_url": "https://www.thepearlsource.com/7-8mm-white-freshwater-pearl-necklace.html",
      "price_display": "USD 210 listed",
      "pearl_details": "7.0–7.5mm white freshwater; seller grade AAA",
      "setting": "16–20-inch options; sterling-silver base clasp, gold upgrades",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "Listing price; selected length and clasp unresolved",
      "availability": "Retailer publishes an in-stock status",
      "source_note": "Official product title and description say 7.0–7.5mm despite the older 7–8mm URL. Confirm the chosen variant.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.thepearlsource.com/7-8mm-white-freshwater-pearl-necklace.html"
        }
      ],
      "id": "freshwater-the-pearl-source",
      "currency": "USD",
      "observed_price": 210.0,
      "sample_status": "excluded",
      "selection_note": "The listing price was not resolved to a selected length and clasp."
    },
    {
      "pearl_type": "freshwater",
      "retailer": "Pure Pearls",
      "product_name": "White Freshwater Pearl Necklace, 7.0–7.5mm",
      "product_url": "https://www.purepearls.com/products/white-freshwater-pearl-necklace-7-5-8-0mm?variant=50008760025325",
      "price_display": "USD 330",
      "pearl_details": "7.0–7.5mm white freshwater; seller grade AAA",
      "setting": "18-inch strand; sterling-silver filigree clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "18-inch / sterling-silver filigree clasp",
      "availability": "Retailer lists the selected variant as available",
      "source_note": "The 14K white-gold variant is USD 540; URL wording alone is not evidence of the current size.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.purepearls.com/products/white-freshwater-pearl-necklace-7-5-8-0mm"
        },
        {
          "label": "Official variant data",
          "url": "https://www.purepearls.com/products/white-freshwater-pearl-necklace-7-5-8-0mm.js"
        }
      ],
      "id": "freshwater-pure-pearls",
      "currency": "USD",
      "observed_price": 330.0,
      "sample_status": "full-strand",
      "size_mm": [
        7,
        7.5
      ],
      "length_in": 18,
      "clasp_metal": "sterling silver",
      "clasp_design": "filigree",
      "color": "white",
      "price_basis": "selected variant",
      "selection_note": "Matched descriptive specifications do not establish equal pearl quality or equivalent seller grades."
    },
    {
      "pearl_type": "freshwater",
      "retailer": "Pearl Paradise",
      "product_name": "7.5–8.0mm AA+ White Freshwater Pearl Necklace",
      "product_url": "https://www.pearlparadise.com/collections/all-products/products/75-80-mm-16-inch-aa-white-freshwater-pearl-necklace",
      "price_display": "Price not reconfirmed",
      "pearl_details": "7.5–8.0mm white freshwater; seller grade AA+",
      "setting": "16- or 18-inch strand; 14K gold clasp options",
      "checked_at": "2026-10-21",
      "access_method": "indexed-primary-page",
      "construction": "Full strand",
      "configuration": "No current price recovered from indexed official text",
      "availability": "Live stock not confirmed",
      "source_note": "The official page could not be retrieved directly. Indexed official text supports size, AA+ grade and construction; price remains unconfirmed.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.pearlparadise.com/collections/all-products/products/75-80-mm-16-inch-aa-white-freshwater-pearl-necklace"
        }
      ],
      "id": "freshwater-pearl-paradise",
      "currency": null,
      "observed_price": null,
      "sample_status": "excluded",
      "selection_note": "Price and live stock were not reconfirmed; only indexed official specifications were available."
    },
    {
      "pearl_type": "freshwater",
      "retailer": "Pearls of Joy",
      "product_name": "White Freshwater Pearl Necklace, 7.0–7.5mm",
      "product_url": "https://www.pearlsofjoy.com/products/white-freshwater-pearl-necklace-7-5-8-0mm?variant=43229870719037",
      "price_display": "USD 330",
      "pearl_details": "7.0–7.5mm white freshwater; seller grade AAA",
      "setting": "18-inch strand; sterling-silver filigree clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "18-inch / sterling-silver filigree clasp",
      "availability": "Retailer lists the selected variant as available",
      "source_note": "The 14K white-gold variant is USD 540. Compare the seller criteria and actual pearls rather than equating two AAA labels.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.pearlsofjoy.com/products/white-freshwater-pearl-necklace-7-5-8-0mm"
        },
        {
          "label": "Official variant data",
          "url": "https://www.pearlsofjoy.com/products/white-freshwater-pearl-necklace-7-5-8-0mm.js"
        }
      ],
      "id": "freshwater-pearls-of-joy",
      "currency": "USD",
      "observed_price": 330.0,
      "sample_status": "full-strand",
      "size_mm": [
        7,
        7.5
      ],
      "length_in": 18,
      "clasp_metal": "sterling silver",
      "clasp_design": "filigree",
      "color": "white",
      "price_basis": "selected variant",
      "selection_note": "Matched descriptive specifications do not establish equal pearl quality or equivalent seller grades."
    },
    {
      "pearl_type": "freshwater",
      "retailer": "AKWAYA",
      "product_name": "14K White Gold 8–9mm White Freshwater Cultured Pearl Necklace",
      "product_url": "https://www.akwaya.com/products/14k-white-gold-8-9mm-white-freshwater-cultured-pearl-necklace-18-princess-length?variant=49178157220030",
      "price_display": "USD 99",
      "pearl_details": "8–9mm white semi-round freshwater cultured pearls",
      "setting": "18-inch strand; 14K white-gold fishhook clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "18-inch / 14K white-gold clasp",
      "availability": "Retailer lists the selected variant as available",
      "source_note": "Semi-round is a stated shape, not proof of a lower or higher overall quality; no letter grade or measured nacre thickness was recovered.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.akwaya.com/products/14k-white-gold-8-9mm-white-freshwater-cultured-pearl-necklace-18-princess-length"
        },
        {
          "label": "Official variant data",
          "url": "https://www.akwaya.com/products/14k-white-gold-8-9mm-white-freshwater-cultured-pearl-necklace-18-princess-length.js"
        }
      ],
      "id": "freshwater-akwaya",
      "currency": "USD",
      "observed_price": 99.0,
      "sample_status": "full-strand",
      "size_mm": [
        8,
        9
      ],
      "length_in": 18,
      "clasp_metal": "14K white gold",
      "clasp_design": "fishhook",
      "color": "white",
      "price_basis": "selected variant",
      "selection_note": "Matched descriptive specifications do not establish equal pearl quality or equivalent seller grades."
    },
    {
      "pearl_type": "freshwater",
      "retailer": "House of Pearls",
      "product_name": "7.5–8mm White Freshwater Pearl Necklace",
      "product_url": "https://houseofpearls.com/products/7-5-8mm-white-freshwater-pearl-necklace-1?variant=39757675790468",
      "price_display": "USD 375",
      "pearl_details": "7.5–8.0mm white freshwater; selected seller grade AAA",
      "setting": "16-inch strand; 14K white-gold clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "AAA / 16-inch / 14K white gold",
      "availability": "Retailer lists the selected variant as available",
      "source_note": "The 18-inch AAA / white-gold variant is USD 383; AAAA is a separate seller option.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://houseofpearls.com/products/7-5-8mm-white-freshwater-pearl-necklace-1"
        },
        {
          "label": "Official variant data",
          "url": "https://houseofpearls.com/products/7-5-8mm-white-freshwater-pearl-necklace-1.js"
        }
      ],
      "id": "freshwater-house-of-pearls",
      "currency": "USD",
      "observed_price": 375.0,
      "sample_status": "full-strand",
      "size_mm": [
        7.5,
        8
      ],
      "length_in": 16,
      "clasp_metal": "14K white gold",
      "clasp_design": null,
      "color": "white",
      "price_basis": "selected variant",
      "selection_note": "Matched descriptive specifications do not establish equal pearl quality or equivalent seller grades."
    },
    {
      "pearl_type": "freshwater",
      "retailer": "Premium Pearl",
      "product_name": "White Freshwater Pearl Necklace 5.5–6mm",
      "product_url": "https://www.premiumpearl.com/products/freshwater-pearl-necklace-1902?variant=54713487753582",
      "price_display": "USD 150",
      "pearl_details": "5.5–6.0mm white freshwater; seller grade AAA",
      "setting": "16-inch silk-knotted strand; sterling-silver clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "16-inch / standard sterling-silver clasp",
      "availability": "Retailer lists the selected variant as available",
      "source_note": "Changing to the standard white-gold clasp raises this listed 16-inch variant to USD 210.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.premiumpearl.com/products/freshwater-pearl-necklace-1902"
        },
        {
          "label": "Official variant data",
          "url": "https://www.premiumpearl.com/products/freshwater-pearl-necklace-1902.js"
        }
      ],
      "id": "freshwater-premium-pearl",
      "currency": "USD",
      "observed_price": 150.0,
      "sample_status": "full-strand",
      "size_mm": [
        5.5,
        6
      ],
      "length_in": 16,
      "clasp_metal": "sterling silver",
      "clasp_design": null,
      "color": "white",
      "price_basis": "selected variant",
      "selection_note": "Matched descriptive specifications do not establish equal pearl quality or equivalent seller grades."
    },
    {
      "pearl_type": "freshwater",
      "retailer": "The Freshwater Pearl Company",
      "product_name": "Sierra Seed Bead and Freshwater Pearl Necklace",
      "product_url": "https://thefreshwaterpearlcompany.com/products/sierra?variant=32129268940911",
      "price_display": "USD 45",
      "pearl_details": "One oval 9mm freshwater pearl; white selected",
      "setting": "17-inch silver-color seed beads; magnetic clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Single-pearl necklace",
      "configuration": "17-inch / silver-color beads / white pearl",
      "availability": "Retailer lists the selected variant as available; confirm at checkout",
      "source_note": "Availability depends on the selected length, bead color and pearl color; confirm before ordering. Silver-color beads do not establish sterling-silver metal.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://thefreshwaterpearlcompany.com/products/sierra"
        },
        {
          "label": "Official variant data",
          "url": "https://thefreshwaterpearlcompany.com/products/sierra.js"
        }
      ],
      "id": "freshwater-the-freshwater-pearl-company",
      "currency": "USD",
      "observed_price": 45.0,
      "sample_status": "other-construction",
      "selection_note": "Shown separately; not part of the full-strand groups."
    },
    {
      "pearl_type": "freshwater",
      "retailer": "PEARL-LANG",
      "product_name": "Luxury 18k Gold Freshwater Pearl Necklace",
      "product_url": "https://www.pearl-lang.com/products/luxury-multi-coloured-freshwater-pearl-necklace?variant=1137094872",
      "price_display": "USD 1,548",
      "pearl_details": "7.5–8.5mm multicolor freshwater; round/near-round",
      "setting": "18-inch knotted strand; 18K yellow-gold ball clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "Multicolor variant; USD storefront",
      "availability": "Retailer lists the variant as available",
      "source_note": "Color palette, size range and 18K metal differ from the white, silver-clasp comparisons.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.pearl-lang.com/products/luxury-multi-coloured-freshwater-pearl-necklace"
        },
        {
          "label": "Official variant data",
          "url": "https://www.pearl-lang.com/products/luxury-multi-coloured-freshwater-pearl-necklace.js"
        }
      ],
      "id": "freshwater-pearl-lang",
      "currency": "USD",
      "observed_price": 1548.0,
      "sample_status": "full-strand",
      "size_mm": [
        7.5,
        8.5
      ],
      "length_in": 18,
      "clasp_metal": "18K yellow gold",
      "clasp_design": "ball",
      "color": "multicolor",
      "price_basis": "selected variant",
      "selection_note": "Matched descriptive specifications do not establish equal pearl quality or equivalent seller grades."
    },
    {
      "pearl_type": "freshwater",
      "retailer": "MMK Pearls",
      "product_name": "4.0–5.0mm White Freshwater Pearl Strand — Adjustable 14K Yellow Gold",
      "product_url": "https://mmkpearls.com/products/freshwater-cultured-pearl-double-strands-with-14k-yellow-gold-4-0-5-0mm?variant=1310986305582",
      "price_display": "USD 399",
      "pearl_details": "4.0–5.0mm white freshwater; seller grade AAAAA",
      "setting": "18-inch strand plus 6-inch adjustment chain; 14K yellow gold",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "Default variant; current official single-strand description",
      "availability": "Retailer lists the selected variant as available; confirm at checkout",
      "source_note": "The legacy URL says double strands, but the current title and description describe a strand. Confirm construction with the seller if essential; AAAAA is not an industry-wide grade.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://mmkpearls.com/products/freshwater-cultured-pearl-double-strands-with-14k-yellow-gold-4-0-5-0mm"
        },
        {
          "label": "Official variant data",
          "url": "https://mmkpearls.com/products/freshwater-cultured-pearl-double-strands-with-14k-yellow-gold-4-0-5-0mm.js"
        }
      ],
      "id": "freshwater-mmk-pearls",
      "currency": "USD",
      "observed_price": 399.0,
      "sample_status": "excluded",
      "selection_note": "The current strand description conflicts with legacy double-strand wording in the URL; construction needs confirmation for strict matching."
    }
  ],
  "additional_variants": [
    {
      "pearl_type": "freshwater",
      "retailer": "Pure Pearls",
      "product_name": "White Freshwater Pearl Necklace, 7.0–7.5mm",
      "product_url": "https://www.purepearls.com/products/white-freshwater-pearl-necklace-7-5-8-0mm?variant=50008760090861",
      "price_display": "USD 540",
      "pearl_details": "7.0–7.5mm white freshwater; seller grade AAA",
      "setting": "18-inch strand; 14K white-gold filigree clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "18\" Princess / Filigree Clasp 14K White Gold",
      "availability": "Retailer lists the selected variant as available",
      "source_note": "The 14K white-gold variant is USD 540; URL wording alone is not evidence of the current size.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.purepearls.com/products/white-freshwater-pearl-necklace-7-5-8-0mm"
        },
        {
          "label": "Official variant data",
          "url": "https://www.purepearls.com/products/white-freshwater-pearl-necklace-7-5-8-0mm.js"
        }
      ],
      "id": "freshwater-pure-pearls-14k-white-gold",
      "currency": "USD",
      "observed_price": 540.0,
      "sample_status": "full-strand",
      "size_mm": [
        7,
        7.5
      ],
      "length_in": 18,
      "clasp_metal": "14K white gold",
      "clasp_design": "filigree",
      "color": "white",
      "price_basis": "selected variant",
      "selection_note": "Additional configuration checked in the same October 21 official variant snapshot; not a new product or a later price check.",
      "variant_evidence_sha256": "8e1a985abc378083e6645f08ffc19f61036e746dc660fd9d7e185ebe02e303d3"
    },
    {
      "pearl_type": "freshwater",
      "retailer": "Pearls of Joy",
      "product_name": "White Freshwater Pearl Necklace, 7.0–7.5mm",
      "product_url": "https://www.pearlsofjoy.com/products/white-freshwater-pearl-necklace-7-5-8-0mm?variant=43229870784573",
      "price_display": "USD 540",
      "pearl_details": "7.0–7.5mm white freshwater; seller grade AAA",
      "setting": "18-inch strand; 14K white-gold filigree clasp",
      "checked_at": "2026-10-21",
      "access_method": "direct-primary-page",
      "construction": "Full strand",
      "configuration": "18\" Princess / Filigree Clasp 14K White Gold",
      "availability": "Retailer lists the selected variant as available",
      "source_note": "The 14K white-gold variant is USD 540. Compare the seller criteria and actual pearls rather than equating two AAA labels.",
      "sources": [
        {
          "label": "Official product page",
          "url": "https://www.pearlsofjoy.com/products/white-freshwater-pearl-necklace-7-5-8-0mm"
        },
        {
          "label": "Official variant data",
          "url": "https://www.pearlsofjoy.com/products/white-freshwater-pearl-necklace-7-5-8-0mm.js"
        }
      ],
      "id": "freshwater-pearls-of-joy-14k-white-gold",
      "currency": "USD",
      "observed_price": 540.0,
      "sample_status": "full-strand",
      "size_mm": [
        7,
        7.5
      ],
      "length_in": 18,
      "clasp_metal": "14K white gold",
      "clasp_design": "filigree",
      "color": "white",
      "price_basis": "selected variant",
      "selection_note": "Additional configuration checked in the same October 21 official variant snapshot; not a new product or a later price check.",
      "variant_evidence_sha256": "867b225f72130cf53814cb86923e30ca4e1f84501e1af5d67cd2f27e2b5d573e"
    }
  ],
  "cohorts": [
    {
      "id": "4b11e956ca",
      "pearl_type": "akoya",
      "size_mm": [
        7,
        7.5
      ],
      "length_in": 18,
      "clasp_metal": "14K white gold",
      "clasp_design": "ball",
      "color": "white",
      "currency": "USD",
      "construction": "Full strand",
      "observations": 1,
      "retailers": 1,
      "low": 2190.0,
      "high": 2190.0,
      "record_ids": [
        "akoya-pure-pearls"
      ]
    },
    {
      "id": "f25c07ee69",
      "pearl_type": "akoya",
      "size_mm": [
        6.5,
        7
      ],
      "length_in": 18,
      "clasp_metal": "14K white gold",
      "clasp_design": "ball",
      "color": "white",
      "currency": "USD",
      "construction": "Full strand",
      "observations": 1,
      "retailers": 1,
      "low": 1910.0,
      "high": 1910.0,
      "record_ids": [
        "akoya-pearls-of-joy"
      ]
    },
    {
      "id": "e4ef47f5ed",
      "pearl_type": "akoya",
      "size_mm": [
        7,
        7.5
      ],
      "length_in": 18,
      "clasp_metal": "14K yellow gold",
      "clasp_design": "fishhook",
      "color": "white",
      "currency": "USD",
      "construction": "Full strand",
      "observations": 1,
      "retailers": 1,
      "low": 1289.0,
      "high": 1289.0,
      "record_ids": [
        "akoya-akwaya"
      ]
    },
    {
      "id": "25afc240e9",
      "pearl_type": "akoya",
      "size_mm": [
        6.5,
        7
      ],
      "length_in": 16,
      "clasp_metal": "gold-filled",
      "clasp_design": "round",
      "color": "white",
      "currency": "USD",
      "construction": "Full strand",
      "observations": 1,
      "retailers": 1,
      "low": 1369.0,
      "high": 1369.0,
      "record_ids": [
        "akoya-pearlsonly"
      ]
    },
    {
      "id": "154a16b8af",
      "pearl_type": "freshwater",
      "size_mm": [
        7,
        7.5
      ],
      "length_in": 18,
      "clasp_metal": "sterling silver",
      "clasp_design": "filigree",
      "color": "white",
      "currency": "USD",
      "construction": "Full strand",
      "observations": 2,
      "retailers": 2,
      "low": 330.0,
      "high": 330.0,
      "record_ids": [
        "freshwater-pure-pearls",
        "freshwater-pearls-of-joy"
      ]
    },
    {
      "id": "2147e3f92b",
      "pearl_type": "freshwater",
      "size_mm": [
        8,
        9
      ],
      "length_in": 18,
      "clasp_metal": "14K white gold",
      "clasp_design": "fishhook",
      "color": "white",
      "currency": "USD",
      "construction": "Full strand",
      "observations": 1,
      "retailers": 1,
      "low": 99.0,
      "high": 99.0,
      "record_ids": [
        "freshwater-akwaya"
      ]
    },
    {
      "id": "a00b1c0bb6",
      "pearl_type": "freshwater",
      "size_mm": [
        7.5,
        8
      ],
      "length_in": 16,
      "clasp_metal": "14K white gold",
      "clasp_design": null,
      "color": "white",
      "currency": "USD",
      "construction": "Full strand",
      "observations": 1,
      "retailers": 1,
      "low": 375.0,
      "high": 375.0,
      "record_ids": [
        "freshwater-house-of-pearls"
      ]
    },
    {
      "id": "ac3937258f",
      "pearl_type": "freshwater",
      "size_mm": [
        5.5,
        6
      ],
      "length_in": 16,
      "clasp_metal": "sterling silver",
      "clasp_design": null,
      "color": "white",
      "currency": "USD",
      "construction": "Full strand",
      "observations": 1,
      "retailers": 1,
      "low": 150.0,
      "high": 150.0,
      "record_ids": [
        "freshwater-premium-pearl"
      ]
    },
    {
      "id": "7fdd4375cc",
      "pearl_type": "freshwater",
      "size_mm": [
        7.5,
        8.5
      ],
      "length_in": 18,
      "clasp_metal": "18K yellow gold",
      "clasp_design": "ball",
      "color": "multicolor",
      "currency": "USD",
      "construction": "Full strand",
      "observations": 1,
      "retailers": 1,
      "low": 1548.0,
      "high": 1548.0,
      "record_ids": [
        "freshwater-pearl-lang"
      ]
    },
    {
      "id": "c15cef1fa4",
      "pearl_type": "freshwater",
      "size_mm": [
        7,
        7.5
      ],
      "length_in": 18,
      "clasp_metal": "14K white gold",
      "clasp_design": "filigree",
      "color": "white",
      "currency": "USD",
      "construction": "Full strand",
      "observations": 2,
      "retailers": 2,
      "low": 540.0,
      "high": 540.0,
      "record_ids": [
        "freshwater-pure-pearls-14k-white-gold",
        "freshwater-pearls-of-joy-14k-white-gold"
      ]
    }
  ]
}