{
  "version": "https://jsonfeed.org/version/1.1",
  "title": "Learn About Pearls: new and updated pages",
  "home_page_url": "https://learnaboutpearls.com/",
  "feed_url": "https://learnaboutpearls.com/feed.json",
  "description": "A reference on pearls: how they form, the main types, quality, grading, buying and care. Published by Unique Pearl, a pearl jeweler.",
  "language": "en-US",
  "authors": [
    {
      "name": "Learn About Pearls editors",
      "url": "https://learnaboutpearls.com/about/"
    }
  ],
  "items": [
    {
      "id": "https://learnaboutpearls.com/about/#published",
      "url": "https://learnaboutpearls.com/about/",
      "title": "About Learn About Pearls",
      "summary": "Who publishes Learn About Pearls, why, how the site is paid for, and how editorial decisions are made, with education first and no paid placements.",
      "content_text": "Who publishes Learn About Pearls, why, how the site is paid for, and how editorial decisions are made, with education first and no paid placements.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/accessibility/#published",
      "url": "https://learnaboutpearls.com/accessibility/",
      "title": "Accessibility Statement",
      "summary": "How Learn About Pearls is built for everyone: the standard it aims for, how pages are tested, what works without JavaScript, and how to report a problem.",
      "content_text": "How Learn About Pearls is built for everyone: the standard it aims for, how pages are tested, what works without JavaScript, and how to report a problem.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/types/akoya-pearls/#published",
      "url": "https://learnaboutpearls.com/types/akoya-pearls/",
      "title": "Akoya Pearls: Origin, Sizes, Quality and Value",
      "summary": "Akoya cultured pearls from the Pinctada fucata oyster: where they're farmed, how they're grown, their sizes and colors, quality, treatments and care.",
      "content_text": "Akoya cultured pearls from the Pinctada fucata oyster: where they're farmed, how they're grown, their sizes and colors, quality, treatments and care.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/compare/akoya-vs-freshwater-pearls/#published",
      "url": "https://learnaboutpearls.com/compare/akoya-vs-freshwater-pearls/",
      "title": "Akoya vs Freshwater Pearls: What's the Difference?",
      "summary": "Akoya and freshwater cultured pearls side by side: the mollusks and water they grow in, their sizes, colors, nacre and price, and how labs tell them apart.",
      "content_text": "Akoya and freshwater cultured pearls side by side: the mollusks and water they grow in, their sizes, colors, nacre and price, and how labs tell them apart.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/compare/akoya-vs-south-sea-pearls/#published",
      "url": "https://learnaboutpearls.com/compare/akoya-vs-south-sea-pearls/",
      "title": "Akoya vs South Sea Pearls: What's the Difference?",
      "summary": "Akoya and South Sea cultured pearls side by side: oyster and pearl size, nacre thickness, luster, colors, growing time, treatments and relative price.",
      "content_text": "Akoya and South Sea cultured pearls side by side: oyster and pearl size, nacre thickness, luster, colors, growing time, treatments and relative price.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/tools/are-my-pearls-real/#published",
      "url": "https://learnaboutpearls.com/tools/are-my-pearls-real/",
      "title": "Are My Pearls Real? A Checklist",
      "summary": "A checklist for telling pearls from imitations at home: the surface and drill hole under a loupe, the tooth test, and what only a laboratory can tell you.",
      "content_text": "A checklist for telling pearls from imitations at home: the surface and drill hole under a loupe, the tooth test, and what only a laboratory can tell you.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/farming/are-pearls-ethical-and-sustainable/#published",
      "url": "https://learnaboutpearls.com/farming/are-pearls-ethical-and-sustainable/",
      "title": "Are Pearls Ethical and Sustainable?",
      "summary": "The ethics and footprint of pearls: effects on water, wild oyster stocks, the oysters themselves and the people involved, and the questions to ask a seller.",
      "content_text": "The ethics and footprint of pearls: effects on water, wild oyster stocks, the oysters themselves and the people involved, and the questions to ask a seller.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/buying/mens-pearls/#published",
      "url": "https://learnaboutpearls.com/buying/mens-pearls/",
      "title": "Can Men Wear Pearls?",
      "summary": "Men and pearls, from Julius Caesar and Charles I's pearl earring to George III's pearl buttons and Emily Post's pearl studs, and how to choose pearls today.",
      "content_text": "Men and pearls, from Julius Caesar and Charles I's pearl earring to George III's pearl buttons and Emily Post's pearl studs, and how to choose pearls today.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/care/what-damages-pearls/#published",
      "url": "https://learnaboutpearls.com/care/what-damages-pearls/",
      "title": "Can Pearls Get Wet, and What Damages Them?",
      "summary": "What harms pearls and what doesn't: water, chlorine, cosmetics, acids, heat, light, dry air and scratches, and why pearls can change color over the years.",
      "content_text": "What harms pearls and what doesn't: water, chlorine, cosmetics, acids, heat, light, dry air and scratches, and why pearls can change color over the years.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/wearing/pearls-for-weddings-and-graduations/#published",
      "url": "https://learnaboutpearls.com/wearing/pearls-for-weddings-and-graduations/",
      "title": "Can You Wear Pearls at a Wedding?",
      "summary": "Pearls at weddings and graduations: the old belief that pearls mean tears, pearls as a wedding gift, brides and pearls in history, and June celebrations.",
      "content_text": "Pearls at weddings and graduations: the old belief that pearls mean tears, pearls as a wedding gift, brides and pearls in history, and June celebrations.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/tools/compare-pearl-types/#published",
      "url": "https://learnaboutpearls.com/tools/compare-pearl-types/",
      "title": "Compare Pearl Types Side by Side",
      "summary": "Compare Akoya, freshwater, South Sea, Tahitian and keshi cultured pearls side by side: mollusk, water, regions, sizes, shapes, colors, growing time and more.",
      "content_text": "Compare Akoya, freshwater, South Sea, Tahitian and keshi cultured pearls side by side: mollusk, water, regions, sizes, shapes, colors, growing time and more.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/contact/#published",
      "url": "https://learnaboutpearls.com/contact/",
      "title": "Contact Learn About Pearls",
      "summary": "How to reach the Learn About Pearls editors: ask a question about pearls, suggest a correction to a page, or send a privacy, reuse or press request.",
      "content_text": "How to reach the Learn About Pearls editors: ask a question about pearls, suggest a correction to a page, or send a privacy, reuse or press request.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/corrections/#published",
      "url": "https://learnaboutpearls.com/corrections/",
      "title": "Corrections",
      "summary": "Every correction made to Learn About Pearls, newest first, with the date, the page, what it said before and what it says now. Suggest one from any page.",
      "content_text": "Every correction made to Learn About Pearls, newest first, with the date, the page, what it said before and what it says now. Suggest one from any page.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/science/pearl-producing-mollusks/#published",
      "url": "https://learnaboutpearls.com/science/pearl-producing-mollusks/",
      "title": "Do Pearls Come From Oysters, Clams or Mussels?",
      "summary": "Which mollusks make pearls: pearl oysters, freshwater mussels, and the clams, conchs, scallops and other mollusks that make natural pearls without nacre.",
      "content_text": "Which mollusks make pearls: pearl oysters, freshwater mussels, and the clams, conchs, scallops and other mollusks that make natural pearls without nacre.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/editorial-policy/#published",
      "url": "https://learnaboutpearls.com/editorial-policy/",
      "title": "Editorial Policy",
      "summary": "How Learn About Pearls chooses topics, which sources it trusts, how AI is used, who reviews each page, how corrections work and how conflicts are handled.",
      "content_text": "How Learn About Pearls chooses topics, which sources it trusts, how AI is used, who reviews each page, how corrections work and how conflicts are handled.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/media/#published",
      "url": "https://learnaboutpearls.com/media/",
      "title": "For Journalists and Researchers",
      "summary": "For journalists, researchers and teachers: who publishes Learn About Pearls, how to quote and cite it, where to get its data, and how to reach the editors.",
      "content_text": "For journalists, researchers and teachers: who publishes Learn About Pearls, how to quote and cite it, where to get its data, and how to reach the editors.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/types/freshwater-pearls/#published",
      "url": "https://learnaboutpearls.com/types/freshwater-pearls/",
      "title": "Freshwater Pearls: Origin, Sizes, Quality and Value",
      "summary": "Freshwater cultured pearls from mussels in China: how they're grown, their sizes, shapes and colors, quality, treatments, price and how labs identify them.",
      "content_text": "Freshwater cultured pearls from mussels in China: how they're grown, their sizes, shapes and colors, quality, treatments, price and how labs identify them.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/grading/#published",
      "url": "https://learnaboutpearls.com/grading/",
      "title": "How Are Pearls Graded?",
      "summary": "How pearls are graded: why there is no single worldwide system, how GIA's lab grades pearls, and how Japan and French Polynesia have classified them.",
      "content_text": "How pearls are graded: why there is no single worldwide system, how GIA's lab grades pearls, and how Japan and French Polynesia have classified them.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/identification/dyed-and-treated-pearls/#published",
      "url": "https://learnaboutpearls.com/identification/dyed-and-treated-pearls/",
      "title": "How Are Pearls Treated, and How Can You Tell?",
      "summary": "Pearl treatments from bleaching and dyeing to irradiation, heating and coating: how labs detect them, how long they last, and what sellers must disclose.",
      "content_text": "Pearl treatments from bleaching and dyeing to irradiation, heating and coating: how labs detect them, how long they last, and what sellers must disclose.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/tools/pearl-size-visualizer/#published",
      "url": "https://learnaboutpearls.com/tools/pearl-size-visualizer/",
      "title": "How Big Is a Pearl? See Pearl Sizes at True Size",
      "summary": "See pearls drawn at true size, from 1 to 20 mm across, next to a US quarter and the typical sizes of Akoya, freshwater, South Sea, Tahitian and keshi pearls.",
      "content_text": "See pearls drawn at true size, from 1 to 20 mm across, next to a US quarter and the typical sizes of Akoya, freshwater, South Sea, Tahitian and keshi pearls.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/identification/how-to-tell-if-pearls-are-real/#published",
      "url": "https://learnaboutpearls.com/identification/how-to-tell-if-pearls-are-real/",
      "title": "How Can You Tell If Pearls Are Real?",
      "summary": "How to tell real pearls from imitations: what the surface, the drill hole and the tooth test can show, what they can't prove, and what a gem lab adds.",
      "content_text": "How to tell real pearls from imitations: what the surface, the drill hole and the tooth test can show, what they can't prove, and what a gem lab adds.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/farming/how-pearl-farms-work/#published",
      "url": "https://learnaboutpearls.com/farming/how-pearl-farms-work/",
      "title": "How Do Pearl Farms Work?",
      "summary": "How cultured pearls are farmed, step by step: collecting or breeding the mollusks, grafting, tending them in the water, harvesting, and processing the pearls.",
      "content_text": "How cultured pearls are farmed, step by step: collecting or breeding the mollusks, grafting, tending them in the water, harvesting, and processing the pearls.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/basics/how-pearls-form/#published",
      "url": "https://learnaboutpearls.com/basics/how-pearls-form/",
      "title": "How Do Pearls Form?",
      "summary": "How natural and cultured pearls form inside a mollusk, from the pearl sac and layers of nacre to beads and grafts, and how long each type takes to grow.",
      "content_text": "How natural and cultured pearls form inside a mollusk, from the pearl sac and layers of nacre to beads and grafts, and how long each type takes to grow.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/compare/#published",
      "url": "https://learnaboutpearls.com/compare/",
      "title": "How Do the Main Types of Pearls Compare?",
      "summary": "Side-by-side comparisons of Akoya, freshwater, South Sea and Tahitian cultured pearls, and of natural vs cultured and saltwater vs freshwater pearls.",
      "content_text": "Side-by-side comparisons of Akoya, freshwater, South Sea and Tahitian cultured pearls, and of natural vs cultured and saltwater vs freshwater pearls.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/care/#published",
      "url": "https://learnaboutpearls.com/care/",
      "title": "How Do You Care for Pearls?",
      "summary": "How to care for pearls: what damages them, how to wear, clean and store them, and when a strand needs restringing, following GIA and CIBJO advice.",
      "content_text": "How to care for pearls: what damages them, how to wear, clean and store them, and when a strand needs restringing, following GIA and CIBJO advice.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/buying/#published",
      "url": "https://learnaboutpearls.com/buying/",
      "title": "How Do You Choose and Buy Pearls?",
      "summary": "How to choose and buy pearls: what each type costs relative to the others, how to judge quality, what to ask a seller, and when a lab report is worth it.",
      "content_text": "How to choose and buy pearls: what each type costs relative to the others, how to judge quality, what to ask a seller, and when a lab report is worth it.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/care/how-to-clean-pearls/#published",
      "url": "https://learnaboutpearls.com/care/how-to-clean-pearls/",
      "title": "How Do You Clean Pearls Safely?",
      "summary": "How to clean pearls safely: wipe after wear, wash gently in warm soapy water, dry a strand properly, and avoid ultrasonic cleaners, ammonia, acids and heat.",
      "content_text": "How to clean pearls safely: wipe after wear, wash gently in warm soapy water, dry a strand properly, and avoid ultrasonic cleaners, ammonia, acids and heat.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/identification/#published",
      "url": "https://learnaboutpearls.com/identification/",
      "title": "How Do You Identify Pearls and Their Treatments?",
      "summary": "How pearls are identified: telling pearls from imitations, natural from cultured, saltwater from freshwater, and spotting treatments, plus what labs test.",
      "content_text": "How pearls are identified: telling pearls from imitations, natural from cultured, saltwater from freshwater, and spotting treatments, plus what labs test.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/quality/#published",
      "url": "https://learnaboutpearls.com/quality/",
      "title": "How Do You Judge Pearl Quality?",
      "summary": "How pearl quality is judged on seven value factors, size, shape, color, luster, surface, nacre and matching, and what each one means for a pearl's value.",
      "content_text": "How pearl quality is judged on seven value factors, size, shape, color, luster, surface, nacre and matching, and what each one means for a pearl's value.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/wearing/how-to-style-pearls/#published",
      "url": "https://learnaboutpearls.com/wearing/how-to-style-pearls/",
      "title": "How Do You Style Pearls?",
      "summary": "How pearls are worn: necklace lengths, mixing colors and shapes, earrings, rings and pendants, how fashions have changed, and whether pearls suit a funeral.",
      "content_text": "How pearls are worn: necklace lengths, mixing colors and shapes, earrings, rings and pendants, how fashions have changed, and whether pearls suit a funeral.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/farming/how-long-pearls-take-to-grow/#published",
      "url": "https://learnaboutpearls.com/farming/how-long-pearls-take-to-grow/",
      "title": "How Long Does It Take to Grow a Pearl?",
      "summary": "How long cultured pearls take to grow, from under a year for many Akoya to years for freshwater and South Sea pearls, and why growing time affects nacre.",
      "content_text": "How long cultured pearls take to grow, from under a year for many Akoya to years for freshwater and South Sea pearls, and why growing time affects nacre.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/buying/what-are-pearls-worth/#published",
      "url": "https://learnaboutpearls.com/buying/what-are-pearls-worth/",
      "title": "How Much Are Pearls Worth?",
      "summary": "What makes pearls valuable: natural or cultured, the type of pearl, the seven value factors, treatment and supply, with an auction record and production values.",
      "content_text": "What makes pearls valuable: natural or cultured, the type of pearl, the seven value factors, treatment and supply, with an auction record and production values.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/care/restringing-pearls/#published",
      "url": "https://learnaboutpearls.com/care/restringing-pearls/",
      "title": "How Often Should Pearls Be Restrung?",
      "summary": "How often to restring pearls, the sign that a strand needs it, why pearls are knotted, and how to keep the silk thread from stretching between restrings.",
      "content_text": "How often to restring pearls, the sign that a strand needs it, why pearls are knotted, and how to keep the silk thread from stretching between restrings.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/cite/#published",
      "url": "https://learnaboutpearls.com/cite/",
      "title": "How to Cite and Reuse Learn About Pearls",
      "summary": "How to cite Learn About Pearls pages and datasets, what you may quote, and the CC BY 4.0 license for the data. Quoting with attribution and a link is welcome.",
      "content_text": "How to cite Learn About Pearls pages and datasets, what you may quote, and the CC BY 4.0 license for the data. Quoting with attribution and a link is welcome.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/wearing/30th-anniversary-pearls/#published",
      "url": "https://learnaboutpearls.com/wearing/30th-anniversary-pearls/",
      "title": "Is Pearl the 30th Wedding Anniversary Gift?",
      "summary": "Pearl and the 30th wedding anniversary: what GIA says, how anniversary lists have changed since Emily Post's 1922 list, and how to choose anniversary pearls.",
      "content_text": "Pearl and the 30th wedding anniversary: what GIA says, how anniversary lists have changed since Emily Post's 1922 list, and how to choose anniversary pearls.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/wearing/june-birthstone/#published",
      "url": "https://learnaboutpearls.com/wearing/june-birthstone/",
      "title": "Is the Pearl the June Birthstone?",
      "summary": "Yes, pearl is a June birthstone, with alexandrite and moonstone: where the US list comes from, what pearls mean, where they come from and how to care for them.",
      "content_text": "Yes, pearl is a June birthstone, with alexandrite and moonstone: where the US list comes from, what pearls mean, where they come from and how to care for them.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/types/keshi-pearls/#published",
      "url": "https://learnaboutpearls.com/types/keshi-pearls/",
      "title": "Keshi Pearls: What They Are and How They Form",
      "summary": "Keshi are cultured pearls with no bead, formed on Akoya, South Sea and Tahitian pearl farms: how they form, their sizes and shapes, and how labs identify them.",
      "content_text": "Keshi are cultured pearls with no bead, formed on Akoya, South Sea and Tahitian pearl farms: how they form, their sizes and shapes, and how labs identify them.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/#published",
      "url": "https://learnaboutpearls.com/",
      "title": "Learn About Pearls",
      "summary": "A reference on pearls, covering how they form, the main types, quality and grading, how to tell real from imitation, and how to buy and care for them.",
      "content_text": "A reference on pearls, covering how they form, the main types, quality and grading, how to tell real from imitation, and how to buy and care for them.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/data/#published",
      "url": "https://learnaboutpearls.com/data/",
      "title": "Learn About Pearls Data",
      "summary": "Download the Learn About Pearls datasets: pearl types, glossary and timeline as JSON or CSV with JSON Schemas, under CC BY 4.0, with sources for every value.",
      "content_text": "Download the Learn About Pearls datasets: pearl types, glossary and timeline as JSON or CSV with JSON Schemas, under CC BY 4.0, with sources for every value.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/compare/natural-vs-cultured-pearls/#published",
      "url": "https://learnaboutpearls.com/compare/natural-vs-cultured-pearls/",
      "title": "Natural vs Cultured Pearls: What's the Difference?",
      "summary": "Natural and cultured pearls compared: how each one forms, how rare natural pearls are, how labs tell them apart, and how each is named and weighed.",
      "content_text": "Natural and cultured pearls compared: how each one forms, how rare natural pearls are, how labs tell them apart, and how each is named and weighed.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/tools/pearl-care-planner/#published",
      "url": "https://learnaboutpearls.com/tools/pearl-care-planner/",
      "title": "Pearl Care Planner",
      "summary": "A care plan for your own pearls: what to do after each wear, how to clean and store them, what never to use, and when to have them checked and restrung.",
      "content_text": "A care plan for your own pearls: what to do after each wear, how to clean and store them, what never to use, and when to have them checked and restrung.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/glossary/#published",
      "url": "https://learnaboutpearls.com/glossary/",
      "title": "Pearl Glossary",
      "summary": "Plain-English definitions of pearl terms, from Akoya and aragonite to X-radiography, each with its sources, related terms and the page that covers it.",
      "content_text": "Plain-English definitions of pearl terms, from Akoya and aragonite to X-radiography, each with its sources, related terms and the page that covers it.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/tools/necklace-length-guide/#published",
      "url": "https://learnaboutpearls.com/tools/necklace-length-guide/",
      "title": "Pearl Necklace Length Guide",
      "summary": "Enter a pearl necklace's length in centimeters or inches and see its standard name, from collar and choker to princess, matinee, opera, sautoir and rope.",
      "content_text": "Enter a pearl necklace's length in centimeters or inches and see its standard name, from collar and choker to princess, matinee, opera, sautoir and rope.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/tools/pearl-quality-self-check/#published",
      "url": "https://learnaboutpearls.com/tools/pearl-quality-self-check/",
      "title": "Pearl Quality Self-Check",
      "summary": "Check a pearl yourself against GIA's value factors, from luster and surface to nacre, shape and matching, and read what GIA says about what you see.",
      "content_text": "Check a pearl yourself against GIA's value factors, from luster and surface to nacre, shape and matching, and read what GIA says about what you see.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/tools/#published",
      "url": "https://learnaboutpearls.com/tools/",
      "title": "Pearl Tools",
      "summary": "Interactive pearl tools for necklace lengths, true-size pearls, pearl types, quality, telling real from imitation, care and where pearls are farmed.",
      "content_text": "Interactive pearl tools for necklace lengths, true-size pearls, pearl types, quality, telling real from imitation, care and where pearls are farmed.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/privacy/#published",
      "url": "https://learnaboutpearls.com/privacy/",
      "title": "Privacy Policy",
      "summary": "What Learn About Pearls collects: no cookies or ads, only the messages readers choose to send, how they're used and kept, and how to ask for them to be deleted.",
      "content_text": "What Learn About Pearls collects: no cookies or ads, only the messages readers choose to send, how they're used and kept, and how to ask for them to be deleted.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/compare/real-vs-imitation-pearls/#published",
      "url": "https://learnaboutpearls.com/compare/real-vs-imitation-pearls/",
      "title": "Real vs Imitation Pearls: What's the Difference?",
      "summary": "How pearls grown by mollusks differ from manufactured imitations: what imitations are made of, how they fool people, how to tell, and what they must be called.",
      "content_text": "How pearls grown by mollusks differ from manufactured imitations: what imitations are made of, how they fool people, how to tell, and what they must be called.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/compare/saltwater-vs-freshwater-pearls/#published",
      "url": "https://learnaboutpearls.com/compare/saltwater-vs-freshwater-pearls/",
      "title": "Saltwater vs Freshwater Pearls: What's the Difference?",
      "summary": "Saltwater and freshwater cultured pearls compared: oysters versus mussels, beads versus tissue, one pearl versus many, output, price, chemistry and naming.",
      "content_text": "Saltwater and freshwater cultured pearls compared: oysters versus mussels, beads versus tissue, one pearl versus many, output, price, chemistry and naming.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/types/south-sea-pearls/#published",
      "url": "https://learnaboutpearls.com/types/south-sea-pearls/",
      "title": "South Sea Pearls: Origin, Colors, Sizes and Value",
      "summary": "South Sea cultured pearls from the Pinctada maxima oyster: where they're farmed, white and golden colors, sizes, nacre, quality, treatments and care.",
      "content_text": "South Sea cultured pearls from the Pinctada maxima oyster: where they're farmed, white and golden colors, sizes, nacre, quality, treatments and care.",
      "date_published": "2026-11-04T12:00:00Z"
    },
    {
      "id": "https://learnaboutpearls.com/compare/south-sea-vs-tahitian-pearls/#published",
      "url": "https://learnaboutpearls.com/compare/south-sea-vs-tahitian-pearls/",
      "title": "South Sea vs Tahitian Pearls: What's the Difference?",
      "summary": "South Sea and Tahitian cultured pearls side by side: their oysters and origins, colors, sizes, nacre and growing times, and how labs tell them apart.",
      "content_text": "South Sea and Tahitian cultured pearls side by side: their oysters and origins, colors, sizes, nacre and growing times, and how labs tell them apart.",
      "date_published": "2026-11-04T12:00:00Z"
    }
  ]
}