{"id":12403,"date":"2026-04-21T07:20:00","date_gmt":"2026-04-21T07:20:00","guid":{"rendered":"https:\/\/www.serendipitydiamonds.com\/blog\/?p=12403"},"modified":"2026-04-22T07:39:14","modified_gmt":"2026-04-22T07:39:14","slug":"cloudy-diamonds-milky-white","status":"publish","type":"post","link":"https:\/\/www.serendipitydiamonds.com\/blog\/cloudy-diamonds-milky-white\/","title":{"rendered":"Cloudy Diamonds &#8211; Milky, Foggy, Dull and Lifeless Diamonds"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\" id=\"h-what-is-a-cloudy-diamond-quick-answer\">What is a Cloudy Diamond? (Quick Answer)<\/h2>\n\n\n\n<p>A <strong>cloudy diamond<\/strong> appears hazy or milky due to a dense concentration of microscopic inclusions inside the stone. These inclusions scatter light, reducing brilliance and making the diamond look dull, foggy, or lifeless compared to a bright, well-cut diamond.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">A Quick Guide to Cloudy Diamonds<\/h2>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Caused by <strong>clusters of tiny inclusions<\/strong> rather than a single visible flaw<\/li>\n\n\n\n<li>Often described as <strong>milky, sleepy, foggy, or dull<\/strong><\/li>\n\n\n\n<li>Typically found in <strong>lower clarity grades (I1\u2013I3)<\/strong><\/li>\n\n\n\n<li>Can also be affected by <strong>strong fluorescence<\/strong><\/li>\n\n\n\n<li>Usually priced <strong>20\u201330% lower<\/strong> than brighter diamonds<\/li>\n\n\n\n<li>Best avoided if sparkle is a priority<\/li>\n<\/ul>\n\n\n\n<p><em>Our main photograph compares two diamonds. The diamond on the left appears cloudy, dull, milky and lifeless compared to the diamond on the right.\u00a0<\/em><\/p>\n\n\n\n<p><em>Internal characteristics have caused a diamond to appear hazy, unlike a regular diamond with greater sparkle. <\/em><\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-4-3 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe loading=\"lazy\" title=\"Milky Cloudy Foggy Diamond Example\" width=\"730\" height=\"548\" src=\"https:\/\/www.youtube.com\/embed\/BeSViHgqqUU?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-what-makes-a-diamond-look-milky-or-dull\">What Makes a Diamond Look Milky or Dull?<\/h2>\n\n\n\n<p>A cloudy appearance almost always comes from the <span style=\"box-sizing: border-box; margin: 0px; padding: 0px;\"><strong>diamond&#8217;s internal structure<\/strong><\/span>\u2014not the surface.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Dense \u201cCloud\u201d Inclusions<\/h3>\n\n\n\n<p>Instead of one visible mark, thousands of microscopic inclusions group together, creating a soft, hazy effect. These inclusions disrupt how light travels through the diamond, reducing sparkle.<\/p>\n\n\n\n<p>Unlike typical inclusions such as feathers or crystals, these clouds:<\/p>\n\n\n\n<p>Create an overall <strong>foggy or oily look<\/strong><\/p>\n\n\n\n<p>Are often <strong>evenly dispersed<\/strong><\/p>\n\n\n\n<p>May not be visible individually<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">2. Reduced Light Performance<\/h3>\n\n\n\n<p>A diamond\u2019s beauty depends on how it handles light. In cloudy diamonds:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Light becomes <strong>scattered and diffused<\/strong><\/li>\n\n\n\n<li>Brilliance and fire are <strong>significantly reduced<\/strong><\/li>\n\n\n\n<li>The stone can appear <strong>flat or lifeless<\/strong>, even if well cut<\/li>\n<\/ul>\n\n\n\n<p>This is why some diamonds look \u201cfine on paper\u201d but disappointing in real life.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">3. Strong Fluorescence<\/h3>\n\n\n\n<p>Fluorescence can sometimes contribute to a milky appearance.<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Medium to strong fluorescence<\/strong> may cause a hazy look in daylight<\/li>\n\n\n\n<li>Most noticeable in <strong>direct sunlight or UV-rich lighting<\/strong><\/li>\n\n\n\n<li>Can reduce the value in otherwise good-quality diamonds<\/li>\n<\/ul>\n\n\n\n<p>That said, fluorescence isn\u2019t always negative\u2014it can improve the face-up colour of slightly yellow diamonds.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-where-do-cloudy-diamonds-originate\">Where do cloudy diamonds originate?<\/h2>\n\n\n\n<p>Not really.<\/p>\n\n\n\n<p>While many cloudy diamonds are cut in India, this reflects the scale of cutting operations rather than origin. The rough diamond itself can come from anywhere\u2014Africa, Canada, Russia, or Australia.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-cloudy-diamonds-and-clarity-grades\">Cloudy Diamonds and Clarity Grades<\/h2>\n\n\n\n<p>Cloudiness is most commonly found in lower clarity grades:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/www.serendipitydiamonds.com\/uk\/education\/what-is-diamond-clarity\">I1\u2013I3 clarity diamonds<\/a> are most at risk<\/li>\n\n\n\n<li>Some SI diamonds may also appear slightly hazy<\/li>\n\n\n\n<li>Lab reports may mention \u201cclouds not shown\u201d \u2014 a subtle warning sign<\/li>\n<\/ul>\n\n\n\n<p>A key point:<br>A diamond can appear <em>eye-clean<\/em> but still look cloudy due to internal haze.<\/p>\n\n\n\n<p>In many cases, the inclusions are not concentrated in one visible flaw. Instead, they are evenly dispersed throughout the stone. This creates a milky effect that reduces brilliance without obvious marks.<\/p>\n\n\n\n<p>Rather than seeing a single inclusion, light is diffused as it passes through thousands of microscopic particles\u2014resulting in a hazy, lifeless appearance.<\/p>\n\n\n\n<p>Although these diamonds may appear clear at first glance, they lack the brightness and sparkle of higher clarity stones.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-diamond-fluorescence-and-cloudy-diamonds\">Diamond fluorescence and cloudy diamonds.<\/h2>\n\n\n\n<p>Some diamonds <a href=\"https:\/\/www.serendipitydiamonds.com\/uk\/education\/what-is-diamond-fluorescence\">fluoresce under UV light<\/a>. Reviewing your diamond certificate, fluorescence will typically be described as nil, very slight, slight, medium, or strong. Diamonds graded with strong fluorescence may appear milky, especially in strong sunlight. UV light causes many such diamonds to glow.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-is-fluorescence-in-diamonds-good-or-bad\">Is fluorescence in diamonds good or bad?<\/h2>\n\n\n\n<p>Jewellers do not generally consider fluorescence to be inherently good or bad. However, strong fluorescence can sometimes cause a hazy appearance in strong sunlight. For this reason, many highly fluorescent diamonds fetch lower prices and rarely accompany high-quality diamonds.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-strong-fluorescence-and-the-reduced-value-in-a-diamond\">Strong fluorescence (and the reduced value in a diamond).<\/h2>\n\n\n\n<p>Strong or very strong fluorescence in white diamonds sometimes results in a milky hue. Many buyers first notice this effect when wearing their new engagement ring in bright sunlight. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-when-does-fluorescence-add-value-to-a-diamond\">When does fluorescence add value to a diamond?<\/h2>\n\n\n\n<p>Tinted diamonds appearing slightly yellow sometimes benefit from a lift in whiteness as a direct result of fluorescence. UV light reflected back from tinted diamonds results in a whiter appearance. <\/p>\n\n\n\n<p>As a result, diamonds appear whiter than their specified colour grade. This effect appears when viewing a diamond from above. In contrast, viewed from the side, we see the diamond&#8217;s true colour.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-smoked-diamond-oxidation-of-a-diamond-s-surface\">&#8216;Smoked&#8217; diamond &#8211; oxidation of a diamond&#8217;s surface<\/h2>\n\n\n\n<p>Occasionally, an oily film can appear on the surface of a diamond ring and be difficult to remove. This film can make the diamond look milky or foggy.<\/p>\n\n\n\n<p>Moreover, the greasy film cannot be wiped away. The effect often follows a noticeable change in the diamond&#8217;s appearance from bright and clear to cloudy.<\/p>\n\n\n\n<p>One of the reasons for this change results from a &#8216;smoked&#8217; effect caused by extreme temperature. As a result, the diamond surface oxidises, leaving an unsightly mark on the stone.<\/p>\n\n\n\n<p>The only remedy for this will be to re-polish the diamond&#8217;s surface with the expertise of a diamond polisher.<\/p>\n\n\n\n<p><em>It&#8217;s always best to unset diamonds before melting down the setting. At very high temperatures, a diamond&#8217;s surface o<\/em>xidises<em>\u00a0resulting in a dull coated appearance.\u00a0<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How much do cloudy diamonds cost?<\/h2>\n\n\n\n<p>Milky diamonds frequently sell at a very competitive price compared to bright, clear diamonds. For this reason, we recommend talking to an expert before making your purchase. <\/p>\n\n\n\n<p>Part of our work involved photographing certified diamonds for clients through our diamond concierge service.<\/p>\n\n\n\n<p>We also provide microscopic&nbsp;imagery and 365-degree videos in many instances where clients cannot visit to inspect diamonds in person. Expect to pay around 20% to 30% less for a milky or cloudy diamond. <\/p>\n\n\n\n<p>Depending on the degree of haziness in a diamond, prices will vary for any given diamond size. Keep in mind that colour and cut also contribute, along with clarity. Some buyers forgive a small degree of haziness in their diamond. In fact, many buyers never notice a reduction in brilliance because they do not have another diamond to compare it to.<\/p>\n\n\n\n<p>As a result, we recommend buyers view a selection of different diamonds to compare different degrees of brilliance. We prepare a selection of suitable diamonds for any client who pre-arranges an appointment to view diamonds. <\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-do-lab-grown-diamonds-get-cloudy\">Do Lab-Grown Diamonds Get Cloudy?<\/h2>\n\n\n\n<p>No\u2014<a href=\"https:\/\/www.serendipitydiamonds.com\/uk\/info\/ethical-lab-grown-diamonds\">lab-grown diamonds <\/a>do <strong>not become cloudy over time<\/strong>.<\/p>\n\n\n\n<p>However:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>They can be <strong>manufactured with cloud inclusions<\/strong> (just like natural diamonds)<\/li>\n\n\n\n<li>Poor-quality lab diamonds may still appear hazy<\/li>\n<\/ul>\n\n\n\n<p>The key difference:<\/p>\n\n\n\n<p>Cloudiness is <strong>present from the start<\/strong>, not something that develops<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">How to Avoid a Cloudy Diamond (Expert Advice)<\/h2>\n\n\n\n<p>When choosing a diamond:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>View the diamond in <strong>natural daylight<\/strong><\/li>\n\n\n\n<li>Compare <strong>multiple stones side-by-side<\/strong><\/li>\n\n\n\n<li>Check for notes like <strong>\u201ccloudy\u201d or \u201cmilky\u201d<\/strong> on grading reports<\/li>\n\n\n\n<li>Ask for <strong>high-resolution images or videos<\/strong><\/li>\n\n\n\n<li>Work with a jeweller who can <strong>hand-select diamonds<\/strong><\/li>\n<\/ul>\n\n\n\n<p>At Serendipity Diamonds, we regularly present clients with carefully selected diamonds for direct comparison. Brilliance is something you need to see\u2014not just read about. That\u2019s why we present diamonds side-by-side, so the difference is immediately clear<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Better Alternatives to Cloudy Diamonds (Quick Answer)<\/h2>\n\n\n\n<p>If you want maximum sparkle:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Choose <strong>VS or SI clarity diamonds<\/strong> with good light performance<\/li>\n\n\n\n<li>Consider <strong>high-quality lab-grown diamonds<\/strong> for better value<\/li>\n\n\n\n<li>Prioritise <strong>cut quality over size<\/strong><\/li>\n<\/ul>\n\n\n\n<p><em><a href=\"https:\/\/isle-of-wight-jewellery.co.uk\/pages\/diamond-and-gemstone-search?activeTab=Lab+Grown&amp;queryLabGrown=true\">Consider searching for high-clarity lab-grown diamonds to find affordably priced alternatives to a cloudy diamond. <\/a><\/em><\/p>\n\n\n\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/isle-of-wight-jewellery.co.uk\/pages\/diamond-and-gemstone-search?activeTab=Lab+Grown&amp;queryLabGrown=true\"><img loading=\"lazy\" decoding=\"async\" width=\"850\" height=\"400\" src=\"https:\/\/www.serendipitydiamonds.com\/blog\/wp-content\/uploads\/2025\/01\/Diamond-search.png\" alt=\"Online diamond search\" class=\"wp-image-23653\" srcset=\"https:\/\/www.serendipitydiamonds.com\/blog\/wp-content\/uploads\/2025\/01\/Diamond-search.png 850w, https:\/\/www.serendipitydiamonds.com\/blog\/wp-content\/uploads\/2025\/01\/Diamond-search-300x141.png 300w, https:\/\/www.serendipitydiamonds.com\/blog\/wp-content\/uploads\/2025\/01\/Diamond-search-768x361.png 768w\" sizes=\"auto, (max-width: 850px) 100vw, 850px\" \/><\/a><\/figure>\n\n\n\n<p><em>Each diamond is carefully selected for brightness, clarity, and overall light performance.<\/em><\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Are Cloudy Diamonds Bad? (Quick Answer)<\/h2>\n\n\n\n<p>Cloudy diamonds are not technically \u201cbad,\u201d but they are generally less desirable because they lack brilliance and sparkle.<\/p>\n\n\n\n<p>They may suit buyers looking for:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A lower price<\/li>\n\n\n\n<li>A larger diamond for the same budget<\/li>\n<\/ul>\n\n\n\n<p>However, for engagement rings and centre stones, most buyers prefer brighter diamonds with better light performance.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Final Thought<\/h2>\n\n\n\n<p>A diamond should catch the light\u2014and your attention.<\/p>\n\n\n\n<p>While cloudy diamonds offer a lower price point, they often lack the brilliance most people expect. In many cases, choosing a slightly smaller, brighter diamond delivers far greater impact.<\/p>\n\n\n\n<div class=\"cloudy-diamond-faqs\">\n  <h2>Frequently Asked Questions About Cloudy Diamonds<\/h2>\n\n  <div class=\"faq-item\">\n    <h3>Do cloudy diamonds sparkle?<\/h3>\n    <p>Cloudy diamonds sparkle less than bright, clear diamonds because microscopic inclusions scatter light inside the stone. As a result, the diamond can appear milky, dull, or lifeless instead of brilliant and lively.<\/p>\n  <\/div>\n\n  <div class=\"faq-item\">\n    <h3>Can a cloudy diamond be cleaned?<\/h3>\n    <p>In most cases, no. Cloudiness usually comes from internal inclusions rather than dirt on the surface, so cleaning will not remove the hazy appearance. Only surface damage or residue may improve with professional attention.<\/p>\n  <\/div>\n\n  <div class=\"faq-item\">\n    <h3>Are cloudy diamonds cheaper?<\/h3>\n    <p>Yes. Cloudy diamonds are often priced lower than brighter diamonds of similar size because they show less brilliance and visual appeal. Depending on the severity of the hazy appearance, prices may be around 20% to 30% lower.<\/p>\n  <\/div>\n<\/div>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\",\n  \"@type\": \"FAQPage\",\n  \"mainEntity\": [\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Do cloudy diamonds sparkle?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Cloudy diamonds sparkle less than bright, clear diamonds because microscopic inclusions scatter light inside the stone. As a result, the diamond can appear milky, dull, or lifeless instead of brilliant and lively.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Can a cloudy diamond be cleaned?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"In most cases, no. Cloudiness usually comes from internal inclusions rather than dirt on the surface, so cleaning will not remove the hazy appearance. Only surface damage or residue may improve with professional attention.\"\n      }\n    },\n    {\n      \"@type\": \"Question\",\n      \"name\": \"Are cloudy diamonds cheaper?\",\n      \"acceptedAnswer\": {\n        \"@type\": \"Answer\",\n        \"text\": \"Yes. Cloudy diamonds are often priced lower than brighter diamonds of similar size because they show less brilliance and visual appeal. Depending on the severity of the hazy appearance, prices may be around 20% to 30% lower.\"\n      }\n    }\n  ]\n}\n<\/script>\n\n\n\n<div class=\"faq-item\">\n  <h3>Are cloudy diamonds bad?<\/h3>\n  <p>Cloudy diamonds are not technically bad, but they are generally less desirable because they lack brilliance and sparkle. For engagement rings and centre stones, most buyers prefer a brighter diamond with better light performance.<\/p>\n<\/div>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"h-related-guides\">Related Guides<\/h2>\n\n\n\n<ul class=\"wp-block-yoast-seo-related-links yoast-seo-related-links\">\n<li><a href=\"https:\/\/www.serendipitydiamonds.com\/blog\/i2-diamond-clarity\/\">I2 Diamond Clarity &#8211; How Good is I2 Clarity for Diamonds<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.serendipitydiamonds.com\/blog\/how-to-read-your-gia-report\/\">How to Read Your Certified GIA Diamond Grading Report<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.serendipitydiamonds.com\/blog\/quick-guide-fancy-diamond-shapes\/\">A Quick Guide to Fancy Diamond Shapes<\/a><\/li>\n\n\n\n<li><a href=\"https:\/\/www.serendipitydiamonds.com\/blog\/375-gold-stamp-for-jewellery\/\">What Does a 375 Gold Stamp Mean? (9ct Gold Hallmark Guide)<\/a><\/li>\n<\/ul>\n\n\n\n<p><\/p>\n","protected":false},"excerpt":{"rendered":"<p>What is a Cloudy Diamond? (Quick Answer) A cloudy diamond appears hazy or milky due to a dense concentration of microscopic inclusions inside the stone. These inclusions scatter light, reducing brilliance and making the diamond look dull, foggy, or lifeless compared to a bright, well-cut diamond. A Quick Guide to Cloudy Diamonds Our main photograph<a class=\"moretag\" href=\"https:\/\/www.serendipitydiamonds.com\/blog\/cloudy-diamonds-milky-white\/\"> Read the full article&#8230;<\/a><\/p>\n","protected":false},"author":1,"featured_media":12883,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[133],"tags":[927],"class_list":["post-12403","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-diamonds-2","tag-cloudy-diamonds"],"_links":{"self":[{"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/posts\/12403","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/comments?post=12403"}],"version-history":[{"count":56,"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/posts\/12403\/revisions"}],"predecessor-version":[{"id":24055,"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/posts\/12403\/revisions\/24055"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/media\/12883"}],"wp:attachment":[{"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/media?parent=12403"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/categories?post=12403"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.serendipitydiamonds.com\/blog\/wp-json\/wp\/v2\/tags?post=12403"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}