{"id":1559035,"date":"2025-10-19T13:24:46","date_gmt":"2025-10-19T05:24:46","guid":{"rendered":"https:\/\/diamondsgallery.com.hk\/?p=1559035"},"modified":"2025-12-07T10:50:09","modified_gmt":"2025-12-07T02:50:09","slug":"shanghai-igi-vs-india-igi","status":"publish","type":"post","link":"https:\/\/diamondsgallery.com.hk\/en\/shanghai-igi-vs-india-igi\/","title":{"rendered":"Shanghai IGI vs. India IGI: Is There a Difference in Certification?"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"1559035\" class=\"elementor elementor-1559035\" wpc-filter-elementor-widget=\"1\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-e8ed063 elementor-section-stretched elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"e8ed063\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;stretch_section&quot;:&quot;section-stretched&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-0a54d58\" data-id=\"0a54d58\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-69cf4d1 elementor-widget elementor-widget-woocommerce-breadcrumb\" data-id=\"69cf4d1\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"woocommerce-breadcrumb.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<nav class=\"woocommerce-breadcrumb\" aria-label=\"Breadcrumb\" data-no-translation=\"\" data-trp-gettext=\"\">Home<\/nav>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-6631b40 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"6631b40\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-00c3041\" data-id=\"00c3041\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-cb8d1f5 elementor-widget elementor-widget-image\" data-id=\"cb8d1f5\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" width=\"1200\" height=\"797\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f.png\" class=\"attachment-full size-full wp-image-1559037\" alt=\"Shanghai IGI vs India IGI\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f.png 1200w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-300x199.png 300w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-1024x680.png 1024w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-768x510.png 768w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-18x12.png 18w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-600x399.png 600w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-64x43.png 64w\" sizes=\"(max-width: 1200px) 100vw, 1200px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-1499cfb\" data-id=\"1499cfb\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-78e2314 elementor-widget elementor-widget-heading\" data-id=\"78e2314\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">Shanghai IGI vs. India IGI: Is There a Difference in Certification?<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c700855 elementor-widget elementor-widget-text-editor\" data-id=\"c700855\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"p1 translation-block\">For consumers preparing to purchase diamonds, a grading certificate is a vital assurance of quality. The International Gemological Institute (IGI) is one of the most globally recognized independent appraisal organizations, and its certificates hold credibility in both international wholesale and retail markets.<\/p><p class=\"p1 translation-block\">IGI currently operates laboratories in numerous countries and regions, with the labs in India (Mumbai, Surat) and Shanghai, China being the most frequently encountered in the Asian market. Many buyers ask: If both are IGI, is there any difference between certificates issued in Shanghai and India? Let's break down the details below.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<div class=\"elementor-element elementor-element-e3c58eb elementor-widget-divider--view-line elementor-widget elementor-widget-divider\" data-id=\"e3c58eb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"divider.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<div class=\"elementor-divider\">\n\t\t\t<span class=\"elementor-divider-separator\">\n\t\t\t\t\t\t<\/span>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-ffda6db elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"ffda6db\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-27cd3e7\" data-id=\"27cd3e7\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-05fdcfb elementor-widget elementor-widget-heading\" data-id=\"05fdcfb\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">1. Grading Standards Are Completely Uniform<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-84220f4 elementor-widget elementor-widget-text-editor\" data-id=\"84220f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"translation-block\">1.1 Unified 4C Standards<\/h3><p class=\"translation-block\">IGI Headquarters sets globally consistent appraisal procedures. All divisions must adhere to the same stringent 4C standards\u2014Carat, Color, Clarity, and Cut\u2014when conducting their assessments.<\/p><h3><span class=\"s2\" style=\"color: #002a4b;\">1.2 Equipment and Process<\/span><\/h3><p><span class=\"s2\">Whether the diamond is tested in the India or Shanghai branch, the detection equipment, gemological methodologies, optical instruments, and security features used for fraud prevention remain consistent and standardized.<\/span><\/p><h3><span style=\"color: #002a4b;\">1.3 Certificate Format<\/span><\/h3><p class=\"translation-block\">While the layout and formatting of certificates issued in different locations might have minor variations (such as font or QR code placement), the core content structure, grading data, and security markers are identical.<\/p><p class=\"p1\"><em><span class=\"s1\"><b>Key Point: A single diamond submitted to both locations for testing should, in theory, yield consistent grading results.<\/b><\/span><\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-5bf342f\" data-id=\"5bf342f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-66cb34b elementor-widget elementor-widget-heading\" data-id=\"66cb34b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">2. Roles of the Two Laboratories and Market Habits<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a11bf53 elementor-widget elementor-widget-text-editor\" data-id=\"a11bf53\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"translation-block\">India IGI<\/h3><p class=\"translation-block\">India is the world's largest hub for rough diamond cutting and trading. Over 90% of rough stones undergo cutting and initial transactions in India, meaning most diamonds exported globally are first certified by IGI India. This long-standing practice has made the \"India IGI Certificate\" a widely accepted standard in the international wholesale trade.<\/p><h3 class=\"translation-block\">Shanghai IGI<\/h3><p class=\"translation-block\">The Shanghai lab was established more recently. It primarily serves clients in Mainland China, Hong Kong, and surrounding Asian markets. For buyers who need to handle China Customs declaration procedures, or who may consider reselling the diamond later in the Greater China market (including Hong Kong, Macau, and the Mainland), a Shanghai IGI certificate may offer greater convenience in terms of documentation and circulation.<\/p><p><em><strong><span class=\"s3\">This difference is purely a matter of market habit and geographical convenience, not an indication of higher or lower grading standards.<\/span><\/strong><\/em><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-97815d0 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"97815d0\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-69cf9c2\" data-id=\"69cf9c2\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8c5f42e elementor-widget elementor-widget-heading\" data-id=\"8c5f42e\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">3. Impact on Price and Resale Value<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-45d31f4 elementor-widget elementor-widget-text-editor\" data-id=\"45d31f4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"translation-block\">Valuation is Still Based on the 4Cs<\/h3><p class=\"translation-block\">Regardless of the certificate's origin, the resale market, pawn shops, and international jewelry trading platforms base their valuation primarily on the diamond's actual quality and the 4C grading listed on the report.<\/p><h3><span class=\"s3\" style=\"color: #002a4b;\">Certificate Location is Not a Primary Factor<\/span><\/h3><p class=\"translation-block\">As long as the IGI certificate is officially certified, whether it is issued by the India or Shanghai lab will not affect the diamond's market value. The true determinants of price are the carat weight, color, clarity, and cut\u2014not the location of the issuing lab.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t<div class=\"elementor-column elementor-col-50 elementor-inner-column elementor-element elementor-element-346e49f\" data-id=\"346e49f\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-325e7e8 elementor-widget elementor-widget-heading\" data-id=\"325e7e8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">4. Practical Advice for Purchasers<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f87601f elementor-widget elementor-widget-text-editor\" data-id=\"f87601f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<h3 class=\"translation-block\">Verify the QR Code<\/h3><p class=\"translation-block\">Regardless of which branch issued the certificate, always verify the document's authenticity by entering the certificate number or scanning the QR code on the official IGI website.<\/p><h3><span class=\"s2\" style=\"color: #002a4b;\">Partner with Professional Retailers<\/span><\/h3><p class=\"translation-block\">Choose reputable jewelers or brands to ensure the diamond's source is reliable and that the original official IGI certificate is provided.<\/p><h3 class=\"translation-block\">Focus on 4Cs and Personal Needs<\/h3><p class=\"translation-block\">Rather than overthinking the certificate location, you should focus on balancing the 4C grades based on your budget and preferences to select the most suitable diamond.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-8773d41 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"8773d41\" data-element_type=\"section\" data-e-type=\"section\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-4befe6d\" data-id=\"4befe6d\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-8cdb968 elementor-widget elementor-widget-heading\" data-id=\"8cdb968\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Conclusion<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-56bf592 elementor-widget elementor-widget-text-editor\" data-id=\"56bf592\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<p class=\"p1 translation-block\">In summary, there is no difference in the professional standards or authority between the Shanghai IGI and India IGI laboratories. Buyers should concentrate on the diamond's inherent quality, design, and personal needs, rather than the certificate's place of issue. As long as the certificate is officially recognized by IGI, it is equally trustworthy regardless of its geographic origin.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<section class=\"elementor-section elementor-inner-section elementor-element elementor-element-98791cd elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"98791cd\" data-element_type=\"section\" data-e-type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;,&quot;shape_divider_bottom&quot;:&quot;tilt&quot;}\">\n\t\t\t\t\t\t\t<div class=\"elementor-background-overlay\"><\/div>\n\t\t\t\t\t\t<div class=\"elementor-shape elementor-shape-bottom\" aria-hidden=\"true\" data-negative=\"false\">\n\t\t\t<svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" viewbox=\"0 0 1000 100\" preserveaspectratio=\"none\">\n\t<path class=\"elementor-shape-fill\" d=\"M0,6V0h1000v100L0,6z\"\/>\n<\/svg>\t\t<\/div>\n\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-inner-column elementor-element elementor-element-23c2aaf\" data-id=\"23c2aaf\" data-element_type=\"column\" data-e-type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-1166c55 elementor-widget elementor-widget-heading\" data-id=\"1166c55\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h3 class=\"elementor-heading-title elementor-size-default\"><b>\u300aWant to learn more about lab grown diamonds?\u300b<\/b><br>Click the link below for a free consultation where our experts will provide you with additional information about diamonds.<\/h3>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div 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class=\"elementor-post elementor-grid-item post-1927695 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-of-lab-grown-diamond\" role=\"listitem\">\n\t\t\t<div class=\"elementor-post__card\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/diamondsgallery.com.hk\/en\/%e5%9f%b9%e8%82%b2%e9%91%bd%e7%9f%b3-vs-%e8%8e%ab%e6%a1%91%e7%9f%b3-vs-%e5%a4%a9%e7%84%b6%e9%91%bd%e7%9f%b3\/\" tabindex=\"-1\"><div class=\"elementor-post__thumbnail\"><img decoding=\"async\" width=\"1024\" height=\"680\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2026\/01\/\u57f9\u80b2\u947d\u77f3-vs-\u83ab\u6851\u77f3-vs-\u5929\u7136\u947d\u77f3-Lab-grown-diamonds-vs.-moissanite-vs.-natural-diamonds-1024x680.png\" class=\"attachment-large size-large wp-image-1927701\" alt=\"\u57f9\u80b2\u947d\u77f3 vs \u83ab\u6851\u77f3 vs \u5929\u7136\u947d\u77f3 Lab-grown diamonds vs. moissanite vs. natural diamonds\" 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alt=\"\u8cb4\u91d1\u5c6c\u73e0\u5bf6\u53ef\u4ee5\u5728\u904b\u52d5\u3001\u7761\u89ba\u6216\u6d17\u6fa1\u6642\u4f69\u6234\u55ce\uff1f\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/12\/\u8cb4\u91d1\u5c6c\u73e0\u5bf6\u53ef\u4ee5\u5728\u904b\u52d5\u3001\u7761\u89ba\u6216\u6d17\u6fa1\u6642\u4f69\u6234\u55ce\uff1f.png 609w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/12\/\u8cb4\u91d1\u5c6c\u73e0\u5bf6\u53ef\u4ee5\u5728\u904b\u52d5\u3001\u7761\u89ba\u6216\u6d17\u6fa1\u6642\u4f69\u6234\u55ce\uff1f-240x300.png 240w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/12\/\u8cb4\u91d1\u5c6c\u73e0\u5bf6\u53ef\u4ee5\u5728\u904b\u52d5\u3001\u7761\u89ba\u6216\u6d17\u6fa1\u6642\u4f69\u6234\u55ce\uff1f-10x12.png 10w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/12\/\u8cb4\u91d1\u5c6c\u73e0\u5bf6\u53ef\u4ee5\u5728\u904b\u52d5\u3001\u7761\u89ba\u6216\u6d17\u6fa1\u6642\u4f69\u6234\u55ce\uff1f-600x751.png 600w, 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(Pro)\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-1559035 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-of-lab-grown-diamond\" role=\"listitem\">\n\t\t\t<div class=\"elementor-post__card\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/diamondsgallery.com.hk\/en\/shanghai-igi-vs-india-igi\/\" tabindex=\"-1\"><div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"680\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-1024x680.png\" class=\"attachment-large size-large wp-image-1559037\" alt=\"Shanghai IGI vs India IGI\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-1024x680.png 1024w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-300x199.png 300w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-768x510.png 768w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-18x12.png 18w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-600x399.png 600w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f-64x43.png 64w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/10\/\u4e0a\u6d77-IGI-\u8207\u5370\u5ea6-IGI\uff1a\u8b49\u66f8\u6709\u5206\u5225\u55ce\uff1f.png 1200w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/div><\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h4 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/diamondsgallery.com.hk\/en\/shanghai-igi-vs-india-igi\/\">\n\t\t\t\tShanghai IGI vs. India IGI: Is There a Difference in Certification?\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-998838 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-of-lab-grown-diamond\" role=\"listitem\">\n\t\t\t<div class=\"elementor-post__card\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/diamondsgallery.com.hk\/en\/%e5%a6%82%e4%bd%95%e6%8c%91%e9%81%b8-18k-%e7%99%bd%e9%87%91%e8%88%87%e9%89%91%e9%87%91%ef%bc%9f\/\" tabindex=\"-1\"><div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u6311\u9078-18K-\u767d\u91d1\u8207\u9251\u91d1\uff1f.png\" class=\"attachment-large size-large wp-image-998839\" alt=\"How to Choose Between 18K White Gold and Platinum: A Buyer&#039;s Guide\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u6311\u9078-18K-\u767d\u91d1\u8207\u9251\u91d1\uff1f.png 1024w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u6311\u9078-18K-\u767d\u91d1\u8207\u9251\u91d1\uff1f-300x300.png 300w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u6311\u9078-18K-\u767d\u91d1\u8207\u9251\u91d1\uff1f-150x150.png 150w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u6311\u9078-18K-\u767d\u91d1\u8207\u9251\u91d1\uff1f-768x768.png 768w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u6311\u9078-18K-\u767d\u91d1\u8207\u9251\u91d1\uff1f-12x12.png 12w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u6311\u9078-18K-\u767d\u91d1\u8207\u9251\u91d1\uff1f-600x600.png 600w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u6311\u9078-18K-\u767d\u91d1\u8207\u9251\u91d1\uff1f-100x100.png 100w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u6311\u9078-18K-\u767d\u91d1\u8207\u9251\u91d1\uff1f-64x64.png 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/div><\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h4 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/diamondsgallery.com.hk\/en\/%e5%a6%82%e4%bd%95%e6%8c%91%e9%81%b8-18k-%e7%99%bd%e9%87%91%e8%88%87%e9%89%91%e9%87%91%ef%bc%9f\/\">\n\t\t\t\tHow to Choose Between 18K White Gold and Platinum: A Buyer's Guide\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-998821 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-of-lab-grown-diamond\" role=\"listitem\">\n\t\t\t<div class=\"elementor-post__card\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/diamondsgallery.com.hk\/en\/flush-fit-vs-non-flush-fit\/\" tabindex=\"-1\"><div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"1024\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u8207\u5a5a\u6212\u6700\u4f73\u6df7\u642d\uff1aFlush-fit-vs.-Non-flush-fit-\u914d\u6234\u6307\u5357-1.png\" class=\"attachment-large size-large wp-image-998793\" alt=\"\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u8207\u5a5a\u6212\u6700\u4f73\u6df7\u642d\uff1aFlush-fit-vs.-Non-flush-fit-\u914d\u6234\u6307\u5357-1.png 1024w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u8207\u5a5a\u6212\u6700\u4f73\u6df7\u642d\uff1aFlush-fit-vs.-Non-flush-fit-\u914d\u6234\u6307\u5357-1-300x300.png 300w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u8207\u5a5a\u6212\u6700\u4f73\u6df7\u642d\uff1aFlush-fit-vs.-Non-flush-fit-\u914d\u6234\u6307\u5357-1-150x150.png 150w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u8207\u5a5a\u6212\u6700\u4f73\u6df7\u642d\uff1aFlush-fit-vs.-Non-flush-fit-\u914d\u6234\u6307\u5357-1-768x768.png 768w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u8207\u5a5a\u6212\u6700\u4f73\u6df7\u642d\uff1aFlush-fit-vs.-Non-flush-fit-\u914d\u6234\u6307\u5357-1-12x12.png 12w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u8207\u5a5a\u6212\u6700\u4f73\u6df7\u642d\uff1aFlush-fit-vs.-Non-flush-fit-\u914d\u6234\u6307\u5357-1-600x600.png 600w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u8207\u5a5a\u6212\u6700\u4f73\u6df7\u642d\uff1aFlush-fit-vs.-Non-flush-fit-\u914d\u6234\u6307\u5357-1-100x100.png 100w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/09\/\u5982\u4f55\u8207\u5a5a\u6212\u6700\u4f73\u6df7\u642d\uff1aFlush-fit-vs.-Non-flush-fit-\u914d\u6234\u6307\u5357-1-64x64.png 64w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/div><\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h4 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/diamondsgallery.com.hk\/en\/flush-fit-vs-non-flush-fit\/\">\n\t\t\t\tThe Ultimate Guide to Stacking Wedding Rings: Flush-fit vs. Non-flush-fit Pairing\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-18974 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-of-lab-grown-diamond\" role=\"listitem\">\n\t\t\t<div class=\"elementor-post__card\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/diamondsgallery.com.hk\/en\/why-lab-grown-diamonds-are-better-than-natural-diamonds\/\" tabindex=\"-1\"><div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"1024\" height=\"683\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-1024x683.jpeg\" class=\"attachment-large size-large wp-image-18822\" alt=\"lab grown diamonds \u8a8d\u8b58\u5be6\u9a57\u5ba4\u57f9\u80b2\u947d\u77f3\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-1024x683.jpeg 1024w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-600x400.jpeg 600w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-scaled-64x43.jpeg 64w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-300x200.jpeg 300w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-768x512.jpeg 768w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-1536x1024.jpeg 1536w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-2048x1365.jpeg 2048w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-323x215.jpeg 323w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-440x293.jpeg 440w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-675x450.jpeg 675w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/09\/AdobeStock_263272823-544x363.jpeg 544w\" sizes=\"(max-width: 1024px) 100vw, 1024px\" \/><\/div><\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h4 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/diamondsgallery.com.hk\/en\/why-lab-grown-diamonds-are-better-than-natural-diamonds\/\">\n\t\t\t\tUnderstanding Lab Grown Diamonds\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<article class=\"elementor-post elementor-grid-item post-146158 post type-post status-publish format-standard has-post-thumbnail hentry category-knowledge-of-lab-grown-diamond\" role=\"listitem\">\n\t\t\t<div class=\"elementor-post__card\">\n\t\t\t\t<a class=\"elementor-post__thumbnail__link\" href=\"https:\/\/diamondsgallery.com.hk\/en\/which-finger-should-an-engagement-ring-be-worn-on\/\" tabindex=\"-1\"><div class=\"elementor-post__thumbnail\"><img loading=\"lazy\" decoding=\"async\" width=\"1000\" height=\"663\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/05\/which-finger-should-an-engagement-ring-be-worn-on-\u6c42\u5a5a\u6212\u6307\u61c9\u8a72\u6234\u5728\u54ea\u96bb\u624b\u6307\uff1f.png\" class=\"attachment-large size-large wp-image-146159\" alt=\"which-finger-should-an-engagement-ring-be-worn-on \u6c42\u5a5a\u6212\u6307\u61c9\u8a72\u6234\u5728\u54ea\u96bb\u624b\u6307\uff1f\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/05\/which-finger-should-an-engagement-ring-be-worn-on-\u6c42\u5a5a\u6212\u6307\u61c9\u8a72\u6234\u5728\u54ea\u96bb\u624b\u6307\uff1f.png 1000w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/05\/which-finger-should-an-engagement-ring-be-worn-on-\u6c42\u5a5a\u6212\u6307\u61c9\u8a72\u6234\u5728\u54ea\u96bb\u624b\u6307\uff1f-300x199.png 300w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/05\/which-finger-should-an-engagement-ring-be-worn-on-\u6c42\u5a5a\u6212\u6307\u61c9\u8a72\u6234\u5728\u54ea\u96bb\u624b\u6307\uff1f-768x509.png 768w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/05\/which-finger-should-an-engagement-ring-be-worn-on-\u6c42\u5a5a\u6212\u6307\u61c9\u8a72\u6234\u5728\u54ea\u96bb\u624b\u6307\uff1f-18x12.png 18w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/05\/which-finger-should-an-engagement-ring-be-worn-on-\u6c42\u5a5a\u6212\u6307\u61c9\u8a72\u6234\u5728\u54ea\u96bb\u624b\u6307\uff1f-600x398.png 600w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2025\/05\/which-finger-should-an-engagement-ring-be-worn-on-\u6c42\u5a5a\u6212\u6307\u61c9\u8a72\u6234\u5728\u54ea\u96bb\u624b\u6307\uff1f-64x42.png 64w\" sizes=\"(max-width: 1000px) 100vw, 1000px\" \/><\/div><\/a>\n\t\t\t\t<div class=\"elementor-post__text\">\n\t\t\t\t<h4 class=\"elementor-post__title\">\n\t\t\t<a href=\"https:\/\/diamondsgallery.com.hk\/en\/which-finger-should-an-engagement-ring-be-worn-on\/\">\n\t\t\t\tWhich Finger for an Engagement Ring?\t\t\t<\/a>\n\t\t<\/h4>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/article>\n\t\t\t\t<\/div>\n\t\t\t\t\t<span class=\"e-load-more-spinner\">\n\t\t\t\t<i aria-hidden=\"true\" class=\"fas fa-spinner\"><\/i>\t\t\t<\/span>\n\t\t\n\t\t\t\t<div class=\"e-load-more-anchor\" data-page=\"1\" data-max-page=\"3\" data-next-page=\"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/posts\/1559035\/page\/2\/\"><\/div>\n\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-size-sm\" role=\"button\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t\t\t\t<span class=\"elementor-button-text\">Load More<\/span>\n\t\t\t\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<div class=\"e-load-more-message\"><\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>For consumers preparing to purchase diamonds, a grading certificate is a vital assurance of quality. The International Gemological Institute (IGI) is one of the most globally recognized independent appraisal organizations, and its certificates hold credibility in both international wholesale and retail markets. IGI currently operates laboratories in numerous countries and regions, with the labs in India (Mumbai, Surat) and Shanghai, China being the most frequently encountered in the Asian market. Many buyers ask: If both are IGI, is there any difference between certificates issued in Shanghai and India? Let's break down the details below.<\/p>","protected":false},"author":1,"featured_media":1559037,"comment_status":"closed","ping_status":"open","sticky":false,"template":"elementor_header_footer","format":"standard","meta":{"neve_meta_sidebar":"","neve_meta_container":"","neve_meta_enable_content_width":"","neve_meta_content_width":0,"neve_meta_title_alignment":"","neve_meta_author_avatar":"","neve_post_elements_order":"","neve_meta_disable_header":"","neve_meta_disable_footer":"","neve_meta_disable_title":"","_joinchat":[],"footnotes":""},"categories":[186],"tags":[],"class_list":["post-1559035","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-knowledge-of-lab-grown-diamond"],"_links":{"self":[{"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/posts\/1559035","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/comments?post=1559035"}],"version-history":[{"count":19,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/posts\/1559035\/revisions"}],"predecessor-version":[{"id":1926962,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/posts\/1559035\/revisions\/1926962"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/media\/1559037"}],"wp:attachment":[{"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/media?parent=1559035"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/categories?post=1559035"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/tags?post=1559035"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}