{"id":88062,"date":"2025-10-24T06:44:56","date_gmt":"2025-10-24T06:44:56","guid":{"rendered":"https:\/\/blog.theluxurycloset.com\/?p=88062"},"modified":"2025-10-24T06:44:56","modified_gmt":"2025-10-24T06:44:56","slug":"how-to-check-the-purity-authenticity-of-lab-grown-diamonds","status":"publish","type":"post","link":"https:\/\/theluxurycloset.com\/blog\/2025\/10\/24\/how-to-check-the-purity-authenticity-of-lab-grown-diamonds\/","title":{"rendered":"How to Check the Purity &amp; Authenticity of Lab-Grown Diamonds"},"content":{"rendered":"<h2><b>Your lab-grown diamond<\/b><b><i> is<\/i><\/b><b> a real diamond. Fact check: Absolutely true. But how to prove it? Here&#8217;s how.<\/b><span style=\"font-weight: 400;\">\u00a0<\/span><\/h2>\n<p><span style=\"font-weight: 400;\">Lab-grown diamonds are chemically, physically, and optically identical to natural diamonds, making them a sustainable and cost-effective choice. However, verifying their purity (quality factors like clarity and cut) and authenticity (confirming they are lab-created diamonds, not simulants or misrepresented natural stones) requires robust methods. Home tests can identify diamonds versus fakes, such as cubic zirconia, but distinguishing between lab-grown and natural diamonds requires professional expertise. Below are effective methods to ensure your lab-grown diamond is genuine and of high quality, backed by gemological standards.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">However, it&#8217;s crucial to know that purity and authenticity are two separate paradigms for evaluating diamonds.\u00a0<\/span><\/p>\n<h2><b>Understanding Purity vs. Authenticity in Lab-Grown Diamonds<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Before diving into verification methods, it&#8217;s essential to clarify the distinction between <\/span><i><span style=\"font-weight: 400;\">purity<\/span><\/i><span style=\"font-weight: 400;\"> and <\/span><i><span style=\"font-weight: 400;\">authenticity<\/span><\/i><span style=\"font-weight: 400;\"> in the context of lab-grown diamonds, as these terms address different aspects of a diamond\u2019s quality and identity.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><b>Authenticity<\/b><span style=\"font-weight: 400;\">: This confirms that the stone is a genuine diamond (created in a lab via HPHT or CVD processes) and not a simulant like moissanite, cubic zirconia (CZ), or glass. Authenticity also ensures that the diamond is accurately represented as lab-grown, rather than a natural diamond, thereby preventing misrepresentation. Verification involves checking for diamond-specific properties (e.g., carbon composition) and lab-grown origin through advanced testing and certifications.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Purity<\/b><span style=\"font-weight: 400;\"> refers to the diamond\u2019s quality, primarily its clarity (the presence or absence of inclusions and blemishes), as well as other factors such as color and cut. Lab-grown diamonds often have fewer inclusions due to controlled production, but their purity varies. A grading report from a reputable lab details these characteristics, ensuring the stone meets quality standards.<\/span><\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">Certifications from trusted labs, such as GIA or IGI, cover both authenticity (verifying the diamond\u2019s lab-grown origin) and purity (assessing clarity, color, cut, and carat weight, or overall quality). Understanding this distinction helps you prioritize the correct verification methods.\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0With this distinction clear, let\u2019s explore <\/span><b>foolproof methods to ensure your lab-grown diamond is genuine and of high quality, backed by gemological standards.<\/b><\/p>\n<p><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<h2><b>1. Secure a Grading Certificate from Accredited Labs<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A grading certificate from a reputable gemological laboratory is the cornerstone of verifying a lab-grown diamond\u2019s authenticity and purity. These reports detail the stone\u2019s characteristics and confirm its lab-grown origin, preventing misrepresentation.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><b>Gemological Institute of America (GIA):\u00a0<\/b><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The global benchmark for diamond grading, <\/span><span style=\"font-weight: 400;\">GIA,<\/span><span style=\"font-weight: 400;\"> is trusted worldwide. As of October 1, 2025, GIA has transitioned from the traditional 4Cs (cut, color, clarity, and carat) for lab-grown diamonds to simplified &#8220;Premium&#8221; and &#8220;Standard&#8221; tiers based on overall quality. Diamonds below a minimum threshold may not receive a report. GIA utilizes advanced spectroscopy and incorporates laser inscriptions for enhanced traceability, ensuring authenticity. Submit uncertified diamonds to GIA for testing.<\/span><\/p>\n<ul>\n<li>\n<h3><b>International Gemological Institute (IGI):<\/b><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">The <\/span><span style=\"font-weight: 400;\">IGI<\/span><span style=\"font-weight: 400;\"> retains the complete 4Cs grading system for lab-grown diamonds, assessing carat weight, color, clarity (noting the minimal inclusions typical in lab-grown stones), and cut (evaluating brilliance). Their Light Performance Analysis scientifically measures sparkle, including brightness, fire, and contrast.<\/span><span style=\"font-weight: 400;\"> IGI\u2019s certificates<\/span><span style=\"font-weight: 400;\">, bolstered by expanded facilities like their new Surat center, are trusted in Asia and Europe.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\">\n<h3><b>Other Reputable Labs<\/b><span style=\"font-weight: 400;\">:\u00a0<\/span><\/h3>\n<\/li>\n<\/ul>\n<p><span style=\"font-weight: 400;\">HRD Antwerp<\/span><span style=\"font-weight: 400;\">, while respected in Europe, has ceased offering lab-grown diamond certification, leaving the GIA and IGI as the primary options. Always demand a certificate\u2014it\u2019s your proof of quality and origin. Without one, have the diamond tested at a lab to confirm its value.<\/span><\/p>\n<h2><b>2. Consult a Certified Gemologist for Visual and Microscopic Inspection<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">A professional gemologist provides hands-on analysis beyond consumer capabilities, identifying subtle signs of lab-grown origin and assessing purity.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><b>Inclusions and Growth Patterns<\/b><span style=\"font-weight: 400;\">: Lab-grown diamonds may exhibit metallic inclusions (resulting from HPHT processes) or strain patterns under magnification, unlike natural diamonds, which often display feathering or pinpoint flaws. Check for laser inscriptions, such as &#8220;Laboratory-Grown&#8221; or a <\/span><span style=\"font-weight: 400;\">serial number,<\/span><span style=\"font-weight: 400;\"> on the girdle using a 10x jeweler\u2019s loupe, a standard feature in certified stones.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Professional Analysis<\/b><span style=\"font-weight: 400;\">: Gemologists utilize high-magnification microscopes to identify growth patterns specific to lab-grown diamonds. While not definitive on its own, this complements certification for robust verification. Seek gemologists affiliated with bodies like the American Gem Society for reliable appraisals.<\/span><\/li>\n<\/ul>\n<h2><b>3. Utilize Advanced Laboratory Testing Methods<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Advanced tools, typically available at gem labs or specialized jewelers, provide definitive proof of a diamond\u2019s lab-grown status and quality.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><b>UV Fluorescence and DiamondView Testing<\/b><span style=\"font-weight: 400;\">: Lab-grown diamonds may exhibit distinct fluorescence patterns (e.g., intense glow or CVD striations) under UV light, unlike natural diamonds. GIA\u2019s DiamondView uses short-wave UV to reveal these patterns, confirming origin with high accuracy.<\/span><\/li>\n<\/ul>\n<ul>\n<li style=\"font-weight: 400;\"><b>Spectroscopy Techniques<\/b><span style=\"font-weight: 400;\">: Raman spectroscopy analyzes molecular structure, while <\/span><span style=\"font-weight: 400;\">Fourier-Transform Infrared (FTIR) spectroscopy<\/span><span style=\"font-weight: 400;\"> detects impurities, such as nitrogen, which is often absent in lab-grown diamonds. These non-destructive tests verify composition and origin.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>GIA iD100 Device<\/b><span style=\"font-weight: 400;\">: This portable spectrometer quickly distinguishes lab-grown diamonds from natural ones and simulants by analyzing optical properties, offering professional-grade certainty.<\/span><\/li>\n<\/ul>\n<h2><b>4. Leverage Cutting-Edge Traceability Technologies<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">For ultimate confidence, opt for diamonds with embedded traceability features.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><b>Opsydia Nano-IDs<\/b><span style=\"font-weight: 400;\">: This UK technology etches submicron codes beneath the diamond\u2019s surface, linking to a chain-of-custody database. These tamper-proof nano-IDs verify lab-grown origin and are nearly impossible to remove without recutting the stone, ideal for high-value diamonds.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>Other Innovations<\/b><span style=\"font-weight: 400;\">: Technologies like Alrosa\u2019s nano-marking provide similar tracking. Ask jewelers if your diamond includes such features, especially for smaller melee stones.<\/span><\/li>\n<\/ul>\n<h2><b>5. Industry Shifts: Changing Standards, Changing Game<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Recent changes in grading practices reflect the evolving lab-grown diamond market, impacting how authenticity and purity are assessed.<\/span><\/p>\n<ul>\n<li style=\"font-weight: 400;\"><b>GIA\u2019s New Approach<\/b><span style=\"font-weight: 400;\">: As reported by <\/span><i><span style=\"font-weight: 400;\">India Today<\/span><\/i><span style=\"font-weight: 400;\">, GIA has phased out the 4Cs for lab-grown diamonds, adopting &#8220;Premium&#8221; or &#8220;Standard&#8221; labels starting October 2025. Stones that do not meet quality thresholds may go ungraded. This simplifies certification but reduces detail, emphasizing lab-grown diamonds as products of technology rather than geological rarity.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>IGI\u2019s Commitment to Detail<\/b><span style=\"font-weight: 400;\">: IGI continues to use the 4Cs for both lab-grown and natural diamonds, adding Light Performance Analysis to quantify sparkle (brightness, fire, and contrast). Their expansion, which includes a new certification facility in Surat\u2019s Hira Bourse, enhances accessibility and trust, according to <\/span><i><span style=\"font-weight: 400;\">The Times of India<\/span><\/i><span style=\"font-weight: 400;\"> and <\/span><i><span style=\"font-weight: 400;\">Rapaport<\/span><\/i><span style=\"font-weight: 400;\">.<\/span><\/li>\n<li style=\"font-weight: 400;\"><b>HRD Antwerp\u2019s Exit<\/b><span style=\"font-weight: 400;\">: According to The Times of India, HRD Antwerp has ceased certifying lab-grown diamonds, thereby narrowing options for European buyers.<\/span><\/li>\n<\/ul>\n<h2><b>What to Avoid: Home Tests Are Not Reliable for Origin<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">Home methods like thermal conductivity probes, fog tests, or <\/span><span style=\"font-weight: 400;\">basic diamond testers<\/span><span style=\"font-weight: 400;\"> only confirm if a stone is a diamond\u2014not whether it\u2019s lab-grown or natural. Electrical conductivity tests may suggest differences but require expert interpretation. These are inadequate for authenticity; instead, rely on lab certification and professional tools.<\/span><\/p>\n<h2><b>Quickfact Cheatsheet<\/b><\/h2>\n<p>&nbsp;<\/p>\n<table>\n<tbody>\n<tr>\n<td><b>Checkpoint<\/b><\/td>\n<td><b>Why It&#8217;s Important<\/b><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">GIA\/IGI Certificate<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Third-party verification<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Laser Inscription<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Physical evidence matching the report<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Home Tests (UV, fog, water)<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Fun pointers but no guarantees<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Professional Testing<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Accurate identification of lab vs natural<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">Nano-ID<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Traceability that\u2019s nearly tamper-proof<\/span><\/td>\n<\/tr>\n<tr>\n<td><span style=\"font-weight: 400;\">IGI\u2019s Light Analysis<\/span><\/td>\n<td><span style=\"font-weight: 400;\">Quantifies sparkle beyond the 4Cs<\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>&nbsp;<\/p>\n<h2><strong><span data-preserver-spaces=\"true\">Frequently Asked Questions\u00a0<\/span><\/strong><\/h2>\n<h3><strong><span data-preserver-spaces=\"true\">Q: How can I tell if my lab-grown diamond is real?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\">A: The most reliable way is to obtain a grading certificate from a trusted lab like GIA or IGI, which confirms the diamond&#8217;s lab-grown origin and quality. Advanced tests, such as spectroscopy or UV fluorescence, conducted by professionals, can also verify authenticity.<\/span><\/p>\n<h3><strong><span data-preserver-spaces=\"true\">Q: Do lab-grown diamonds come with the 4 Cs certification?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\"> Yes, but changes are here. <\/span><strong><span data-preserver-spaces=\"true\">IGI still grades LGDs using the 4 Cs<\/span><\/strong><span data-preserver-spaces=\"true\">, while <\/span><strong><span data-preserver-spaces=\"true\">GIA now uses &#8220;Premium&#8221; or &#8220;Standard&#8221; labels<\/span><\/strong><span data-preserver-spaces=\"true\">. HRD Antwerp has exited LGD grading altogether.<\/span><\/p>\n<h3><strong><span data-preserver-spaces=\"true\">Q: Can I test the authenticity of a lab-grown diamond at home?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\">At-home tests, such as fog, UV glow, or water drop checks, are fun indicators, but only a lab can confirm authenticity with specialized equipment.<\/span><\/p>\n<h3><strong><span data-preserver-spaces=\"true\">Q: Which certification <\/span><span data-preserver-spaces=\"true\">is most widely recognized<\/span><span data-preserver-spaces=\"true\"> in Europe or Asia?<\/span><\/strong><\/h3>\n<ul>\n<li><strong><span data-preserver-spaces=\"true\">Europe:<\/span><\/strong><span data-preserver-spaces=\"true\"> IGI and HRD are respected.<\/span><\/li>\n<li><strong><span data-preserver-spaces=\"true\">Asia:<\/span><\/strong><span data-preserver-spaces=\"true\"> IGI has gained significant recognition, particularly with its expansion in Surat.<\/span><\/li>\n<li><strong><span data-preserver-spaces=\"true\">Global:<\/span><\/strong><span data-preserver-spaces=\"true\"> GIA remains the most universally recognized institution for gemstone grading.<\/span><\/li>\n<\/ul>\n<h3><strong><span data-preserver-spaces=\"true\">Q: Do lab-grown diamonds hold value in the resale market?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\">Resale values are lower than naturals since LGDs aren&#8217;t rare. However, certified diamonds (IGI or GIA) tend to perform better in resale across the Indian, European, and US markets.<\/span><\/p>\n<h3><strong><span data-preserver-spaces=\"true\">Q: What&#8217;s the difference between purity and authenticity in lab-grown diamonds?<\/span><\/strong><\/h3>\n<ul>\n<li><strong><span data-preserver-spaces=\"true\">Authenticity:<\/span><\/strong><span data-preserver-spaces=\"true\"> Confirms it&#8217;s a diamond (not moissanite or CZ).<\/span><\/li>\n<li><strong><span data-preserver-spaces=\"true\">Purity:<\/span><\/strong><span data-preserver-spaces=\"true\"> Refers to clarity and inclusions. Certifications cover both.<\/span><\/li>\n<\/ul>\n<h3><strong><span data-preserver-spaces=\"true\">Q: Are diamond testers reliable to distinguish lab-grown from natural diamonds?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\">A: No, home testers like thermal or electrical conductivity probes can only confirm if a stone is a diamond, not its origin. <\/span><span data-preserver-spaces=\"true\">They may be fooled by simulants like moissanite<\/span><span data-preserver-spaces=\"true\">. Professional lab testing <\/span><span data-preserver-spaces=\"true\">is required<\/span><span data-preserver-spaces=\"true\"> for accurate identification.<\/span><\/p>\n<h3><strong><span data-preserver-spaces=\"true\">Q: What is the difference between GIA and IGI for lab-grown diamond certification?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\">A: GIA uses simplified &#8220;Premium&#8221; or &#8220;Standard&#8221; labels for lab-grown diamonds (as of October 2025), while IGI retains the detailed 4Cs grading and adds Light Performance Analysis for sparkle. IGI offers more detail, while GIA prioritizes simplicity.<\/span><\/p>\n<h3><strong><span data-preserver-spaces=\"true\">Q: Are lab-grown diamonds less valuable than natural diamonds?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\">A: Lab-grown diamonds are typically less expensive due to their controlled production, but they hold value for their ethical and sustainable qualities. Their worth depends on quality factors such as cut, clarity, and carat, as certified by reputable laboratories.<\/span><\/p>\n<h3><strong><span data-preserver-spaces=\"true\">Q: Where can I buy certified lab-grown diamond jewelry?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\">A: Trusted platforms like <\/span><em><span data-preserver-spaces=\"true\">The Luxury Closet<\/span><\/em><span data-preserver-spaces=\"true\"> offer authenticated lab-grown diamond jewelry with GIA or IGI certifications. Their expert-verified collection ensures quality and authenticity, providing confidence in your purchase.<\/span><\/p>\n<h3><strong><span data-preserver-spaces=\"true\">Q: What are nano-IDs in lab-grown diamonds?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\">A: Nano-IDs, like those from Opsydia, are microscopic codes etched beneath the diamond&#8217;s surface, linking to a database that verifies its lab-grown origin and history. They&#8217;re tamper-proof and ideal for traceability.<\/span><\/p>\n<h3><strong><span data-preserver-spaces=\"true\">Q: Why did HRD Antwerp stop certifying lab-grown diamonds?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\">A: HRD Antwerp exited lab-grown diamond certification to focus on natural diamonds, as reported by <\/span><em><span data-preserver-spaces=\"true\">The Times of India<\/span><\/em><span data-preserver-spaces=\"true\">. <\/span><span data-preserver-spaces=\"true\">This<\/span><span data-preserver-spaces=\"true\"> leaves GIA and IGI as the primary labs for lab-grown certification.<\/span><\/p>\n<h3><strong><span data-preserver-spaces=\"true\">Q: Is it safe to buy lab-grown diamond jewellery online?<\/span><\/strong><\/h3>\n<p><span data-preserver-spaces=\"true\">Yes, buying lab-grown diamond jewellery online is safe when you shop with trusted platforms.\u00a0Always ensure\u00a0that your piece comes with\u00a0<\/span><strong><span data-preserver-spaces=\"true\">certification from reputable agencies such as GIA, IGI, or HRD<\/span><\/strong><span data-preserver-spaces=\"true\">, and verify that the <\/span><strong><span data-preserver-spaces=\"true\">laser inscription on the girdle matches the details on the certificate<\/span><\/strong><span data-preserver-spaces=\"true\">. At The Luxury Closet, every lab-grown diamond undergoes strict authentication and quality checks before listing, so you can shop with confidence. With secure payment gateways, insured shipping, and a transparent return policy, your diamond purchase is both safe and stress-free.<\/span><\/p>\n<h3><b>In a nutshell\u2026<\/b><\/h3>\n<p><span style=\"font-weight: 400;\">Ensuring the purity and authenticity of <a href=\"https:\/\/theluxurycloset.com\/women\/women-fine-jewelry\/brand-the-diamond-edit?srsltid=AfmBOorzUUAvvDQehBkyYBkfUcSgyEhsHcfPG9bltGvwkzK0ZwedrUyU\">lab-grown diamonds<\/a> requires professional certification, expert inspection, and advanced testing. Start with a GIA or IGI grading report, consult a certified gemologist, and consider traceability technologies like Opsydia\u2019s nano-IDs. Industry shifts, like GIA\u2019s simplified labels and IGI\u2019s detailed approach, offer options based on your preference for simplicity or specificity. Avoid home tests\u2014they can\u2019t confirm origin. Purchase from reputable platforms like <\/span><i><span style=\"font-weight: 400;\">The Luxury Closet<\/span><\/i><span style=\"font-weight: 400;\"> to secure certified, high-quality lab-grown diamond jewelry that shines brilliantly.<\/span><\/p>\n<h2><b>Shop with Confidence at The Luxury Closet<\/b><\/h2>\n<p><span style=\"font-weight: 400;\">For those seeking authentic lab-grown diamond jewelry, <\/span><i><span style=\"font-weight: 400;\">The Luxury Closet<\/span><\/i> <span style=\"font-weight: 400;\">is a trusted platform offering a curated selection of high-quality pieces, called The Diamond Edit. Based in Dubai, our premier online marketplace specializes in pre-owned and new luxury items, ensuring that <\/span><a href=\"https:\/\/theluxurycloset.com\/women\/1000-cts-oval-brilliant-cut-lab-grown-diamond-18k-white-gold-earrings-p1188430\"><span style=\"font-weight: 400;\">GIA-verified certifications<\/span><\/a><span style=\"font-weight: 400;\"> accompany every lab-grown diamond. Their rigorous authentication process, backed by in-house experts, guarantees you\u2019re investing in genuine, ethically sourced jewelry. Whether you\u2019re eyeing a sparkling lab-grown diamond ring or a pair of elegant earrings, The Luxury Closet provides competitive pricing in AED and a seamless shopping experience, making it the ideal destination for sustainable luxury. Visit <\/span><i><span style=\"font-weight: 400;\">The Luxury Closet<\/span><\/i><span style=\"font-weight: 400;\"> to explore their collection and purchase with confidence.<\/span><\/p>\n<p>&nbsp;<\/p>\n<p><span style=\"font-weight: 400;\">Sources: <\/span><\/p>\n<p><span style=\"font-weight: 400;\">limelightdiamonds[dot]com\/<\/span><\/p>\n<p><span style=\"font-weight: 400;\">indiatoday[dot]in\/india-today-insight\/story\/lab-grown-diamonds-set-to-lose-4cs-certification-will-buyers-really-bother-2736195-2025-06-05<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p><span style=\"font-weight: 400;\">timesofindia.indiatimes[dot]com\/city\/surat\/igi-expands-lgd-certification-amid-industry-shifts\/articleshow\/123004302.cms?utm_source=chatgpt.com<\/span><span style=\"font-weight: 400;\">\u00a0<\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Your lab-grown diamond is a real diamond. Fact check: Absolutely true. But how to prove it? Here&#8217;s how.\u00a0 Lab-grown diamonds are chemically, physically, and optically identical to natural diamonds, making them a sustainable and cost-effective choice. However, verifying their purity (quality factors like clarity and cut) and authenticity (confirming they are lab-created diamonds, not simulants [&hellip;]<\/p>\n","protected":false},"author":26,"featured_media":88228,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[37,43,1518,38,1519],"tags":[],"class_list":["post-88062","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-fine-jewelry","category-fine-jewelry-2","category-fine-jewelry-3","category-luxury-closet","category-luxury-closet-2"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Check the Purity &amp; Authenticity of Lab-Grown Diamonds<\/title>\n<meta name=\"description\" content=\"Learn how to verify lab-grown diamonds with GIA or IGI certificates, 4Cs grading, laser inscriptions, and expert tests. 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