{"id":15906,"date":"2021-07-25T16:53:22","date_gmt":"2021-07-25T08:53:22","guid":{"rendered":"https:\/\/diamondsgallery.com.hk\/?p=15906"},"modified":"2026-08-10T12:23:45","modified_gmt":"2026-08-10T04:23:45","slug":"different-diamond-appraisal-agencies-and-certificates","status":"publish","type":"post","link":"https:\/\/diamondsgallery.com.hk\/en\/different-diamond-appraisal-agencies-and-certificates\/","title":{"rendered":"Different diamond grading agencies and certificates"},"content":{"rendered":"<p><img fetchpriority=\"high\" decoding=\"async\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/GIA_Logo-1.png\" sizes=\"(max-width: 1000px) 100vw, 1000px\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/GIA_Logo-1.png 1000w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/GIA_Logo-1-600x197.png 600w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/GIA_Logo-1-64x21.png 64w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/GIA_Logo-1-300x99.png 300w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/GIA_Logo-1-768x253.png 768w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/GIA_Logo-1-323x106.png 323w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/GIA_Logo-1-440x145.png 440w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/GIA_Logo-1-675x222.png 675w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/GIA_Logo-1-544x179.png 544w\" alt=\"gia logo\" width=\"1000\" height=\"329\" \/><br \/>\nThe GIA certificate is a certificate issued by the GIA, the Gemological Institute of America. Now widely adopted, this international diamond grading system for diamond cut, carat, justice and colour was created in 1953 by Richard T. Liddicoat, Chairman of Grease A's Board of Directors. After the establishment of this system of completeness and consistency of results, many people asked the Gemological Institute of America to develop a set of submission procedures. Therefore, in 1955, the Gemological Institute of America issued the first diamond grading report, which is what we call it. diamond certificate. In addition to issuing certificates for natural diamonds, GIA also provides services for identifying and issuing certificates for lab grown diamonds.<br \/>\n<img decoding=\"async\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/logo_IGI-1.png\" sizes=\"(max-width: 420px) 100vw, 420px\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/logo_IGI-1.png 420w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/logo_IGI-1-64x26.png 64w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/logo_IGI-1-300x124.png 300w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/logo_IGI-1-323x133.png 323w\" alt=\"IGI logo\" width=\"420\" height=\"173\" \/><\/p>\n<h2>IGI<\/h2>\n<p>IGI certificates are issued by the International Gemological Institute.\nThe International Gemological Institute was established in Belgium in 1975 to conduct private diamond appraisals for a few diamond families. After these high-quality diamonds were sold to European royal families, IGI's reputation gradually increased. Even the royal families of the Middle East sent their jewellery to IGI for appraisal. IGI identifies most lab grown diamonds, and its certificate standards are roughly the same as GIA. In terms of cut, it is one more level than Ideal, GIA's top \"Excellent\" cut grade and Ideal is the top cut grade.<br \/>\n<img decoding=\"async\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/\u4e0b\u8f09-1.jpeg\" sizes=\"(max-width: 387px) 100vw, 387px\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/\u4e0b\u8f09-1.jpeg 387w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/\u4e0b\u8f09-1-64x21.jpeg 64w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/\u4e0b\u8f09-1-300x101.jpeg 300w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/\u4e0b\u8f09-1-323x109.jpeg 323w\" alt=\"EGL logo\" width=\"387\" height=\"130\" \/><\/p>\n<h2>EGL<\/h2>\n<p>\u6b50\u6d32\u5bf6\u77f3\u9452\u5b9a(European Gemological Laboratory)\u6240\u662f\u947d\u77f3\u5206\u7d1a\u7684\u5148\u92d2\u7d44\u7e54\u3002\u65bc1974\u5e74\u6210\u7acb\u7684EGL\u591a\u5e74\u4f86\u9452\u5b9a\u4e86\u5927\u90e8\u4efd\u4ee5\u8272\u5217\u51fa\u53e3\u7684\u947d\u77f3\u53ca\u5bf6\u77f3\u3002EGL\u5728\u4e16\u754c\u5404\u5730\u5747\u8a2d\u6709\u8fa6\u4e8b\u8655\uff0c2009\u5e7411\u6708\uff0cEGL\u4e9e\u6d32\u5be6\u9a57\u5ba4\u5728\u4e2d\u570b\u4e0a\u6d77\u8a2d\u7acb\u83ef\u6771\u5340\u696d\u52d9\u806f\u7e6b\u4e2d\u5fc3\u5728\u4e2d\u570b\u5e02\u5834\u8b8a\u5f97\u666e\u53ca\u3002\u52a0\u4e0aEGL\u9452\u5b9a\u670d\u52d9\u50f9\u683c\u76f8\u5c0d\u4fbf\u5b9c\uff0c\u56e0\u800c\u5f97\u5230\u5c0f\u578b\u947d\u77f3\u96f6\u552e\u5546\u7684\u9752\u775e\u3002EGL\u8b49\u66f8\u7684\u7d50\u69cb\u8207\u50b3\u7d71\u7684GIA\u5831\u544a\u76f8\u4f3c\uff0c\u4f46\u6a19\u6e96\u537b\u8f03GIA\u5bec\u9b06\uff0c\u4ea6\u56e0\u6b64\u5c0e\u81f4EGL\u7684\u4fe1\u8b7d\u53d7\u8cea\u7591\u3002<\/p>\n<p><img loading=\"lazy\" decoding=\"async\" src=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/unnamed.png\" sizes=\"(max-width: 416px) 100vw, 416px\" srcset=\"https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/unnamed.png 416w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/unnamed-64x18.png 64w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/unnamed-300x85.png 300w, https:\/\/diamondsgallery.com.hk\/wp-content\/uploads\/2021\/07\/unnamed-323x92.png 323w\" alt=\"HRD logo\" width=\"416\" height=\"118\" \/><\/p>\n<h2>HRD<\/h2>\n<p>\u6bd4\u5229\u6642\u947d\u77f3\u9ad8\u968e\u5c64(Hoge Raad voor Diamant)\uff0c\u6210\u7acb\u65bc\u947d\u77f3\u540d\u90fd\u5b89\u7279\u885b\u666e\uff0c\u5b89\u7279\u885b\u666e\u7684\u9246\u77f3\u696d\u6709\u7d041500\u5e74\u7684\u6b77\u53f2\u3002\u5168\u7403\u8d85\u904e50%\u7684\u5bf6\u77f3\u7d1a\u947d\u77f3\u5f9e\u9019\u88e1\u92b7\u552e\u5f80\u4e16\u754c\u5404\u5730\u3002 HRD\u7684\u5be6\u9a57\u5ba4\u70ba\u570b\u969b\u6a19\u6e96\u5316\u8a8d\u8b49\u7684\u5bf6\u77f3\u5be6\u9a57\u5ba4\uff08ISO\u3002\/IEC17025\uff09\u3002 HRD\u8b49\u66f8\u4f7f\u7528\u8f03\u591a\u63cf\u8ff0\u6027\u8a9e\u8a00\uff0c\u4f8b\u5982\u947d\u77f3\u984f\u8272\u7684\u4e0d\u7528D\u3001E\u3001F\u7b49\u5283\u5206\uff0c\u800c\u662f\u7528\u5982\u201cWHITE\u201d\u201cSLIGHTLY TINTED WHITE\u201d\u7b49\u77ed\u8a9e\uff0c\u4e14N\u4ee5\u4e0b\u8272\u7d1a\u5c31\u4e0d\u518d\u5340\u5206\uff1b\u53e6\u5916\uff0cHRD\u6709\u4e00\u7a2e\u91dd\u5c0d1\u514b\u62c9\u4ee5\u4e0b\u947d\u77f3\u7684\u5feb\u6377\u201c\u947d\u77f3\u9452\u5b9a\u8b49\u66f8\u201d\uff0c\u76f8\u5c0d\u5176\u201c\u947d\u77f3\u8b49\u66f8\u201d\uff0c\u5167\u5bb9\u4fe1\u606f\u90fd\u6bd4\u8f03\u7c21\u7565\u3002HRD\u9452\u5b9a\u904e\u7a0b\u56b4\u8b39\uff0c\u63a1\u7528\u4e0d\u8a18\u540d\u539f\u5247\uff0c\u4ee5\u78ba\u4fdd\u9452\u5b9a\u7d50\u679c\u7684\u5ba2\u89c0\u6027\u3002 HRD\u8b49\u66f8\u5728\u6b50\u6d32\u5177\u6709\u4e00\u5b9a\u7684\u5730\u4f4d\uff0c\u88ab\u5f88\u591a\u5728\u6bd4\u5229\u6642\u548c\u8377\u862d\u7684\u947d\u77f3\u5206\u92b7\u5de8\u982d\u548c\u8cb7\u65b9\u3002<\/p>\n<p>Read More:<\/p>\n<ul>\n<li><a href=\"https:\/\/diamondsgallery.com.hk\/en\/why-lab-grown-diamonds-are-better-than-natural-diamonds\/\">Learn about lab grown diamonds<br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/diamondsgallery.com.hk\/en\/hpht-vs-cvd\/\">Learn how Lab Grown Diamond is made<br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/diamondsgallery.com.hk\/en\/do-lab-grown-diamonds-maintain-value\/\">Why does Lab Grown Diamond retain its value so well?<br \/>\n<\/a><\/li>\n<li><a href=\"https:\/\/diamondsgallery.com.hk\/en\/lab-grown-diamonds-vs-natural-diamonds\/\">Lab Grown Diamonds VS Natural Diamonds<\/a><\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"<p>Learn about major diamond grading agencies and their certificates at Diamonds Gallery. Discover the significance of GIA certificates from the Gemological Institute of America, IGI certificates from the International Gemological Institute, and EGL certificates from the European Gemological Laboratory.<\/p>","protected":false},"author":1,"featured_media":18301,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","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-15906","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\/15906","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=15906"}],"version-history":[{"count":3,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/posts\/15906\/revisions"}],"predecessor-version":[{"id":1931514,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/posts\/15906\/revisions\/1931514"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/media\/18301"}],"wp:attachment":[{"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/media?parent=15906"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/categories?post=15906"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/diamondsgallery.com.hk\/en\/wp-json\/wp\/v2\/tags?post=15906"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}