{"id":24,"date":"2007-05-09T14:23:14","date_gmt":"2007-05-09T05:23:14","guid":{"rendered":"https:\/\/www.diamondsandopals.com\/blog\/a-tale-of-two-gia-triple-excellents\/"},"modified":"2018-08-30T15:53:07","modified_gmt":"2018-08-30T07:53:07","slug":"a-tale-of-two-gia-triple-excellents","status":"publish","type":"post","link":"https:\/\/www.jogiadiamonds.com.au\/blog\/a-tale-of-two-gia-triple-excellents\/","title":{"rendered":"A Tale of Two GIA Triple Excellents"},"content":{"rendered":"<p>Recently we got in two GIA &#8220;triple excellents&#8221;.<br \/>\n<!--more--><\/p>\n<p>In case you&#8217;re wondering, a GIA triple excellent diamond is one that has three excellent grades &#8211; for cut, polish and symmetry.<\/p>\n<p>One was perfect, as shown on the left, however, the other one had a light patch in the centre, as shown on the right.<\/p>\n<p align=\"center\"><img loading=\"lazy\" decoding=\"async\" title=\"Ideal Scope Image\" src=\"https:\/\/www.jogiadiamonds.com.au\/images\/analysis\/GIA15520505-is.jpg\" alt=\"Ideal Scope Image\" width=\"168\" height=\"156\" \/> <img loading=\"lazy\" decoding=\"async\" title=\"Ideal Scope Image With Deeper Pavillion\" src=\"https:\/\/www.jogiadiamonds.com.au\/images\/analysis\/GIA15519695-is.jpg\" alt=\"Ideal Scope Image With Deeper Pavillion\" width=\"163\" height=\"152\" \/><\/p>\n<p>So what causes that white patch in the centre?<\/p>\n<p>The answer lies in the fact that the diamond on the right has a pavillion angle of 41.6 degrees. It&#8217;s still an <em>excellent<\/em> grade, however, it is important that laboratory grades are almost always ranges &#8211; not exact measurements. Therefore, if you want to have what is usually called an <em>Ideal Cut<\/em>, it is important to look beyond the laboratory grade and look at either:<\/p>\n<ul>\n<li>The entire set of proportions.<\/li>\n<li>An Ideal Scope image.<\/li>\n<li>Other methods such as the <em>BrillianceScope<\/em> or software ray-tracing.<\/li>\n<\/ul>\n","protected":false},"excerpt":{"rendered":"<p>Recently we got in two GIA &#8220;triple excellents&#8221;.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-24","post","type-post","status-publish","format-standard","hentry","category-diamonds"],"_links":{"self":[{"href":"https:\/\/www.jogiadiamonds.com.au\/blog\/wp-json\/wp\/v2\/posts\/24","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.jogiadiamonds.com.au\/blog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.jogiadiamonds.com.au\/blog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.jogiadiamonds.com.au\/blog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.jogiadiamonds.com.au\/blog\/wp-json\/wp\/v2\/comments?post=24"}],"version-history":[{"count":1,"href":"https:\/\/www.jogiadiamonds.com.au\/blog\/wp-json\/wp\/v2\/posts\/24\/revisions"}],"predecessor-version":[{"id":383,"href":"https:\/\/www.jogiadiamonds.com.au\/blog\/wp-json\/wp\/v2\/posts\/24\/revisions\/383"}],"wp:attachment":[{"href":"https:\/\/www.jogiadiamonds.com.au\/blog\/wp-json\/wp\/v2\/media?parent=24"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.jogiadiamonds.com.au\/blog\/wp-json\/wp\/v2\/categories?post=24"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.jogiadiamonds.com.au\/blog\/wp-json\/wp\/v2\/tags?post=24"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}