Melbourne, Australia–Last year, Rio Tinto made an astounding discovery at its Argyle mine in Western Australia and never said a word about it.<\/p>\n
The diamond mining company unearthed a 9.17-carat piece of rough that yielded a stone Rio Tinto Diamonds\u2019 Patrick Coppens describes as \u201cimpossibly rare\u201d–a 2.83-carat fancy deep grayish blue violet diamond that it dubbed the \u201cArgyle Violet.\u201d<\/p>\n
It is the largest violet diamond ever recovered from the mine. And now it will embark on a world tour, of sorts, as part of the 2016 Argyle Pink Diamonds Tender.<\/p>\n
The Gemological Institute of America assigned the oval-shaped stone a color grade of fancy deep grayish blue violet. In a peer-reviewed article in the spring 2009 edition of Gems & Gemology<\/i>, the GIA noted that the Argyle mine is the world\u2019s only known source of type IaB hydrogen- and nitrogen-rich diamonds colored gray to blue to violet. The article also noted that the more violet-hued stones in this range are colored by nickel defects.<\/p>\n
Rio Tinto said the Argyle Violet has a clarity of SI1.<\/p>\n","protected":false},"excerpt":{"rendered":"
Melbourne, Australia–Last year, Rio Tinto made an astounding discovery at its Argyle mine in Western Australia and never said a word about it. The diamond mining company unearthed a 9.17-carat piece of rough that yielded a stone Rio Tinto Diamonds\u2019 Patrick Coppens describes as \u201cimpossibly rare\u201d–a 2.83-carat fancy deep grayish blue violet diamond that it<\/p>\n","protected":false},"author":1,"featured_media":12,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[31],"tags":[],"class_list":["post-810","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-art","prodpage-style3"],"_links":{"self":[{"href":"https:\/\/repairitpro.co.uk\/Demo4\/wp-json\/wp\/v2\/posts\/810","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/repairitpro.co.uk\/Demo4\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/repairitpro.co.uk\/Demo4\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/repairitpro.co.uk\/Demo4\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/repairitpro.co.uk\/Demo4\/wp-json\/wp\/v2\/comments?post=810"}],"version-history":[{"count":0,"href":"https:\/\/repairitpro.co.uk\/Demo4\/wp-json\/wp\/v2\/posts\/810\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/repairitpro.co.uk\/Demo4\/wp-json\/wp\/v2\/media\/12"}],"wp:attachment":[{"href":"https:\/\/repairitpro.co.uk\/Demo4\/wp-json\/wp\/v2\/media?parent=810"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/repairitpro.co.uk\/Demo4\/wp-json\/wp\/v2\/categories?post=810"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/repairitpro.co.uk\/Demo4\/wp-json\/wp\/v2\/tags?post=810"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}