{"id":108495,"date":"2023-10-11T09:59:47","date_gmt":"2023-10-11T07:59:47","guid":{"rendered":"https:\/\/laboratornidiamanty.cz\/certified-lab-grown-diamonds\/"},"modified":"2026-09-21T20:58:51","modified_gmt":"2026-09-21T18:58:51","slug":"certified-lab-grown-diamonds","status":"publish","type":"post","link":"https:\/\/laboratornidiamanty.cz\/en\/certified-lab-grown-diamonds\/","title":{"rendered":"Certified Lab-Grown Diamonds"},"content":{"rendered":"<h3><strong>Certified Lab-Grown Diamonds&nbsp;<\/strong><\/h3>\n<p style=\"color: #000000;\">Lab-grown diamonds, just like natural ones, undergo certification that determines their properties and results in a certificate. This certificate has its own unique number, which matches the number engraved on every lab-grown diamond&#8217;s girdle. This is the only way to tell a lab-grown diamond apart from a natural one without the help of very expensive equipment.&nbsp;<\/p>\n<p style=\"color: #000000;\">The certificates are identical to those issued for natural diamonds. They clearly state that the stone is a lab-grown diamond, to avoid any doubt or confusion with a natural diamond.&nbsp;<\/p>\n<p style=\"color: rgb(0, 0, 0);\">The most common laboratories certifying diamonds include IGI, GIA, GCAL and others, where customers can verify whether the lab-grown &amp; natural diamond they purchased is on record with that laboratory. Here are links to the laboratories where you can verify the authenticity of the lab-grown diamonds we supply:&nbsp;<\/p>\n<p><span style=\"color: rgb(0, 0, 0);\">GIA : <\/span><a href=\"https:\/\/www.gia.edu\/report-check-landing&amp;nbsp\" style=\"color: rgb(0, 0, 0);\">GIA &#8211; Report Check<\/a><\/p>\n<p><span style=\"color: rgb(0, 0, 0);\">IGI: <\/span><a href=\"https:\/\/www.igi.org\/reports\/verify-your-report\" style=\"color: rgb(0, 0, 0);\">Verify Your Report | Verify Your Diamond Online | IGI<\/a><\/p>\n<p><span style=\"color: rgb(0, 0, 0);\">GCAL: <\/span><a href=\"https:\/\/www.gcalusa.com\/\" style=\"color: rgb(0, 0, 0);\">Gem Certification &amp; Assurance Lab (gcalusa.com)<\/a><\/p>\n<p><span style=\"color: rgb(0, 0, 0);\">If you have any questions about lab-grown &amp; natural diamonds, feel free to write to us at: <\/span><a href=\"mailto:info@laboratornidiamanty.cz\" style=\"color: rgb(0, 0, 0);\">info@laboratornidiamanty.cz<\/a><span style=\"color: rgb(0, 0, 0);\">&nbsp;<\/span><\/p>\n<p><span style=\"color: #737e86;\">Team ULTIMATE-GEMS s. r. o.&nbsp;<\/span><\/p>\n<p>&nbsp;<\/p>\n","protected":false},"excerpt":{"rendered":"<p>Certified Lab-Grown Diamonds&nbsp; Lab-grown diamonds, just like natural ones, undergo certification that determines their properties and results in a certificate. This certificate has its own unique<span class=\"excerpt-hellip\"> [\u2026]<\/span><\/p>\n","protected":false},"author":2,"featured_media":108511,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[],"tags":[],"class_list":["post-108495","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Certified Lab-Grown Diamonds - Lab-grown diamonds<\/title>\n<meta name=\"description\" content=\"What a lab-grown diamond is, how it is made using the CVD and HPHT methods, how it differs from a natural diamond, and why to buy only IGI-certified stones.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/laboratornidiamanty.cz\/en\/certified-lab-grown-diamonds\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Certified Lab-Grown Diamonds - Lab-grown diamonds\" \/>\n<meta property=\"og:description\" content=\"What a lab-grown diamond is, how it is made using the CVD and HPHT methods, how it differs from a natural diamond, and why to buy only IGI-certified stones.\" \/>\n<meta property=\"og:url\" content=\"https:\/\/laboratornidiamanty.cz\/en\/certified-lab-grown-diamonds\/\" \/>\n<meta property=\"og:site_name\" content=\"Lab-grown diamonds\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/laboratornidiamanty\" \/>\n<meta property=\"article:published_time\" content=\"2023-10-11T07:59:47+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-21T18:58:51+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/laboratornidiamanty.cz\/new\/wp-content\/uploads\/2020\/01\/Sirius-Gems-Blog.jpg\" \/>\n<meta name=\"author\" content=\"Michal Aurednik\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Michal Aurednik\" \/>\n\t<meta name=\"twitter:label2\" content=\"Estimated reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\\\/\\\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\\\/\\\/laboratornidiamanty.cz\\\/en\\\/certified-lab-grown-diamonds\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/laboratornidiamanty.cz\\\/en\\\/certified-lab-grown-diamonds\\\/\"},\"author\":{\"name\":\"Michal Aurednik\",\"@id\":\"https:\\\/\\\/laboratornidiamanty.cz\\\/en\\\/#\\\/schema\\\/person\\\/dcbcadbe11cd9453c6b539484e749674\"},\"headline\":\"Certified Lab-Grown Diamonds\",\"datePublished\":\"2023-10-11T07:59:47+00:00\",\"dateModified\":\"2026-09-21T18:58:51+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/laboratornidiamanty.cz\\\/en\\\/certified-lab-grown-diamonds\\\/\"},\"wordCount\":195,\"publisher\":{\"@id\":\"https:\\\/\\\/laboratornidiamanty.cz\\\/en\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/laboratornidiamanty.cz\\\/en\\\/certified-lab-grown-diamonds\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/laboratornidiamanty.cz\\\/new\\\/wp-content\\\/uploads\\\/2023\\\/10\\\/Certifikace-scaled.jpg\",\"inLanguage\":\"en-GB\"},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/laboratornidiamanty.cz\\\/en\\\/certified-lab-grown-diamonds\\\/\",\"url\":\"https:\\\/\\\/laboratornidiamanty.cz\\\/en\\\/certified-lab-grown-diamonds\\\/\",\"name\":\"Certified Lab-Grown Diamonds - 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