{"id":18121,"date":"2020-08-16T16:00:22","date_gmt":"2020-08-16T14:00:22","guid":{"rendered":"http:\/\/gioiellis.com\/?p=18121"},"modified":"2024-08-05T17:09:00","modified_gmt":"2024-08-05T15:09:00","slug":"tutto-sullo-spinello","status":"publish","type":"post","link":"https:\/\/gioiellis.com\/fr\/tout-sur-le-spinelle\/","title":{"rendered":"Tout sur le spinelle"},"content":{"rendered":"<p><\/p>\n<h4>Le spinelle est devenu une partie des pierres du mois d&rsquo;ao\u00fbt. Voici ses caract\u00e9ristiques: pouvez-vous le distinguer d&rsquo;un rubis? &#x2666; \ufe0e<\/h4>\n<p>En 2016, Jewelers of America et American Gem Trade Association ont d\u00e9cid\u00e9 d&rsquo;ajouter le spinelle \u00e0 la liste officielle des pierres de naissance en ao\u00fbt. Le spinelle, en somme, soutient le sceptre de pierre du mois au p\u00e9ridot. En tout \u00e9tat de cause, le spinelle est une pierre de plus en plus utilis\u00e9e, m\u00eame en haute joaillerie, gr\u00e2ce \u00e0 ses caract\u00e9ristiques.<\/p>\n<figure id=\"attachment_109937\" aria-describedby=\"caption-attachment-109937\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/09\/picchiotti-anello-spinello-rosa-arangio-8-81-carati-e-diamanti-.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-109937\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/09\/picchiotti-anello-spinello-rosa-arangio-8-81-carati-e-diamanti-.jpg\" alt=\"Anello con spinello rosa-arancio di 8,81 carati e diamanti\" width=\"709\" height=\"513\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/09\/picchiotti-anello-spinello-rosa-arangio-8-81-carati-e-diamanti-.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/09\/picchiotti-anello-spinello-rosa-arangio-8-81-carati-e-diamanti--300x217.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/09\/picchiotti-anello-spinello-rosa-arangio-8-81-carati-e-diamanti--480x347.jpg 480w, https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/09\/picchiotti-anello-spinello-rosa-arangio-8-81-carati-e-diamanti--691x500.jpg 691w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-109937\" class=\"wp-caption-text\">Anello con spinello rosa-arancio di 8,81 carati e diamanti<\/figcaption><\/figure>\n<p><strong>Histoire.<\/strong> Le spinelle a \u00e9galement \u00e9t\u00e9 appel\u00e9 \u00ab\u00a0grand imposteur des collections royales\u00a0\u00bb. Oui, car beaucoup de pierres pr\u00e9cieuses connues sous le nom de Rubis du Prince Noir ou de Timur Ruby, qui font partie du tr\u00e9sor de la Couronne britannique, ne sont pas des rubis, mais des spinelles. Une gemme de 412 carats, qui fait partie des joyaux de la couronne russe, et la plupart des pierres rouges de la couronne iranienne, qui est la plus grande collection au monde de cette pierre rouge (presque toujours), sont \u00e9galement des spinelles. Le Samarian Spinel est, \u00e0 la place, le plus gros spinelle connu au monde, pesant 500 carats (environ 100 grammes).<\/p>\n<figure id=\"attachment_106085\" aria-describedby=\"caption-attachment-106085\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Red-Spinel-and-Blue-Sapphire-Ring-Size-6.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-106085\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Red-Spinel-and-Blue-Sapphire-Ring-Size-6.jpg\" alt=\"Anello con spinello a forma di cuore e zaffiri\" width=\"709\" height=\"500\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Red-Spinel-and-Blue-Sapphire-Ring-Size-6.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Red-Spinel-and-Blue-Sapphire-Ring-Size-6-300x212.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Red-Spinel-and-Blue-Sapphire-Ring-Size-6-78x55.jpg 78w, https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Red-Spinel-and-Blue-Sapphire-Ring-Size-6-400x282.jpg 400w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-106085\" class=\"wp-caption-text\">Anello con spinello a forma di cuore e zaffiri<\/figcaption><\/figure>\n<p><strong>Identikit.<\/strong> Le spinelle ne s&rsquo;est distingu\u00e9 du rubis qu&rsquo;en 1783 par le min\u00e9ralogiste Jean Baptiste Louis Rome de Lisle. D&rsquo;un point de vue chimique, le spinelle est un min\u00e9ral compos\u00e9 d&rsquo;aluminate de magn\u00e9sium avec des caract\u00e9ristiques tr\u00e8s diff\u00e9rentes de celles du rubis, qui pour la min\u00e9ralogie est plut\u00f4t un corindon. Le spinelle est moins dur (un rubis pointu peut rayer un spinelle, mais le contraire ne se produit pas) et a une densit\u00e9 inf\u00e9rieure. En pratique, avec le m\u00eame volume p\u00e8se moins. De plus, il n\u2019a qu\u2019un seul indice de r\u00e9fraction, alors que le rubis bir\u00e9fringant peut avoir deux couleurs diff\u00e9rentes et distinctes.<\/p>\n<figure id=\"attachment_83822\" aria-describedby=\"caption-attachment-83822\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/06\/ORO-BIANCO-ANNERITO-18-CARATI-CON-SPINELLO-LAVANDA-A-TAGLIO-OVALE.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-83822\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/06\/ORO-BIANCO-ANNERITO-18-CARATI-CON-SPINELLO-LAVANDA-A-TAGLIO-OVALE.jpg\" alt=\"Anello in oro bianco e spinello lavanda\" width=\"709\" height=\"567\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/06\/ORO-BIANCO-ANNERITO-18-CARATI-CON-SPINELLO-LAVANDA-A-TAGLIO-OVALE.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/06\/ORO-BIANCO-ANNERITO-18-CARATI-CON-SPINELLO-LAVANDA-A-TAGLIO-OVALE-300x240.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/06\/ORO-BIANCO-ANNERITO-18-CARATI-CON-SPINELLO-LAVANDA-A-TAGLIO-OVALE-69x55.jpg 69w, https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/06\/ORO-BIANCO-ANNERITO-18-CARATI-CON-SPINELLO-LAVANDA-A-TAGLIO-OVALE-400x320.jpg 400w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-83822\" class=\"wp-caption-text\">Anello in oro bianco e spinello lavanda<\/figcaption><\/figure>\n<p><strong>Couleurs.<\/strong> Les principaux sont le rouge, l&rsquo;orange rouge\u00e2tre, le rose profond, le rouge ros\u00e9, le violet et noir, mais aussi le bleu intense de cobalt, m\u00eame s&rsquo;il est tr\u00e8s rare.<\/p>\n<figure id=\"attachment_102494\" aria-describedby=\"caption-attachment-102494\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/02\/Anello-in-Argento-925-con-griffe-che-incastonano-una-pietra-Spinello-nero-.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-102494\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/02\/Anello-in-Argento-925-con-griffe-che-incastonano-una-pietra-Spinello-nero-.jpg\" alt=\"Anello in argento con spinello nero\" width=\"709\" height=\"482\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/02\/Anello-in-Argento-925-con-griffe-che-incastonano-una-pietra-Spinello-nero-.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/02\/Anello-in-Argento-925-con-griffe-che-incastonano-una-pietra-Spinello-nero--300x204.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/02\/Anello-in-Argento-925-con-griffe-che-incastonano-una-pietra-Spinello-nero--81x55.jpg 81w, https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/02\/Anello-in-Argento-925-con-griffe-che-incastonano-una-pietra-Spinello-nero--400x272.jpg 400w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-102494\" class=\"wp-caption-text\">Anello in argento con spinello nero<\/figcaption><\/figure>\n<p><strong>O\u00f9 il se trouve.<\/strong> En Birmanie, les meilleurs exemples de spinelle sont extraits, dans le rouge, le rose, le violet, l&rsquo;orange, le bleu et le rose. Toujours \u00e0 Mahenge, dans le sud de la Tanzanie, des gemmes ont \u00e9t\u00e9 r\u00e9cemment trouv\u00e9es en grande qualit\u00e9 et de couleur rouge et orange rouge\u00e2tre. Le Sri Lanka est un autre producteur important, suivi par le Tadjikistan, la Tha\u00eflande et le Pakistan.<\/p>\n<figure id=\"attachment_89367\" aria-describedby=\"caption-attachment-89367\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/01\/Leaf-ring-with-spinel-1.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-89367\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/01\/Leaf-ring-with-spinel-1.jpg\" alt=\"Anello Leaf in oro bianco con uno spinello rosso, diamanti\" width=\"709\" height=\"488\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/01\/Leaf-ring-with-spinel-1.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/01\/Leaf-ring-with-spinel-1-300x206.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/01\/Leaf-ring-with-spinel-1-80x55.jpg 80w, https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/01\/Leaf-ring-with-spinel-1-400x275.jpg 400w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-89367\" class=\"wp-caption-text\">Anello Leaf in oro bianco con uno spinello rosso, diamanti<\/figcaption><\/figure>\n<p><strong>\u00c9valuation.<\/strong> Bien qu&rsquo;il soit rare comme le rubis, le prix du spinelle est inf\u00e9rieur. Mais les choses changent rapidement et les prix du spinelle augmentent. Le rouge vif intense est la teinte la plus pr\u00e9cieuse (difficile \u00e0 trouver), suivie de l&rsquo;orange rouge, du rouge rose et du rouge pourpre. Comme le spinelle est g\u00e9n\u00e9ralement sans inclusions, la transparence est tr\u00e8s importante dans l&rsquo;\u00e9valuation. Maintenant que les consommateurs peuvent voir que cette pierre a beaucoup de valeur, qu&rsquo;elle a une longue histoire, ils peuvent commencer \u00e0 l&rsquo;acheter pour enrichir leur collection. Et \u00e0 mesure que l&rsquo;offre et la qualit\u00e9 de cet approvisionnement diminuaient, les prix montaient en fl\u00e8che : de 5 000 $ le carat \u00e0 50 000 $ le carat aujourd&rsquo;hui. Dans le m\u00eame temps, les tailles diminuent, alors qu&rsquo;en 2007 il \u00e9tait facile de trouver une pierre de 100 carats, aujourd&rsquo;hui trouver un spinelle de 20 carats de bonne qualit\u00e9 est assez difficile.<\/p>\n<figure id=\"attachment_90444\" aria-describedby=\"caption-attachment-90444\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/03\/Anello-Con-Spinello-Nero.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-90444\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/03\/Anello-Con-Spinello-Nero.jpg\" alt=\"Anello in argento e spinello nero\" width=\"709\" height=\"510\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/03\/Anello-Con-Spinello-Nero.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/03\/Anello-Con-Spinello-Nero-300x216.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/03\/Anello-Con-Spinello-Nero-76x55.jpg 76w, https:\/\/gioiellis.com\/wp-content\/uploads\/2021\/03\/Anello-Con-Spinello-Nero-400x288.jpg 400w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-90444\" class=\"wp-caption-text\">Anello in argento e spinello nero<\/figcaption><\/figure>\n<p><strong>Mise en garde.<\/strong> Il existe \u00e9galement sur le march\u00e9 des spinelles synth\u00e9tiques, produites sous forme de feuilles par frittage, c&rsquo;est-\u00e0-dire par compactage et formation d&rsquo;une masse solide de mat\u00e9riau sous l&rsquo;effet de la chaleur ou de la pression.<\/p>\n<figure id=\"attachment_92763\" aria-describedby=\"caption-attachment-92763\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Oro-giallo-585-e-argento-925\u02da-317-g-Spinello-198-ct-_-1-pezzo-Zaffiri-038-ct-_-25-pezzi-Diamanti-.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-92763\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Oro-giallo-585-e-argento-925\u02da-317-g-Spinello-198-ct-_-1-pezzo-Zaffiri-038-ct-_-25-pezzi-Diamanti-.jpg\" alt=\"Pendente in oro giallo e argento, spinello, zaffiri, diamanti\" width=\"709\" height=\"499\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Oro-giallo-585-e-argento-925\u02da-317-g-Spinello-198-ct-_-1-pezzo-Zaffiri-038-ct-_-25-pezzi-Diamanti-.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Oro-giallo-585-e-argento-925\u02da-317-g-Spinello-198-ct-_-1-pezzo-Zaffiri-038-ct-_-25-pezzi-Diamanti--300x211.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Oro-giallo-585-e-argento-925\u02da-317-g-Spinello-198-ct-_-1-pezzo-Zaffiri-038-ct-_-25-pezzi-Diamanti--78x55.jpg 78w, https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/05\/Oro-giallo-585-e-argento-925\u02da-317-g-Spinello-198-ct-_-1-pezzo-Zaffiri-038-ct-_-25-pezzi-Diamanti--400x282.jpg 400w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-92763\" class=\"wp-caption-text\">Pendente in oro giallo e argento, spinello, zaffiri, diamanti<\/figcaption><\/figure>\n<figure id=\"attachment_83564\" aria-describedby=\"caption-attachment-83564\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/06\/rubino-del-principe-nero.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-83564\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/06\/rubino-del-principe-nero.jpg\" alt=\"Al centro della corona il Rubino del Principe Nero, che in realt\u00e0 \u00e8 uno spinello\" width=\"709\" height=\"509\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/06\/rubino-del-principe-nero.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/06\/rubino-del-principe-nero-300x215.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/06\/rubino-del-principe-nero-77x55.jpg 77w, https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/06\/rubino-del-principe-nero-400x287.jpg 400w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-83564\" class=\"wp-caption-text\">Al centro della corona il Rubino del Principe Nero, che in realt\u00e0 \u00e8 uno spinello<\/figcaption><\/figure>\n<figure id=\"attachment_106664\" aria-describedby=\"caption-attachment-106664\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/06\/Amodea-anello-Platinum-spinel-rubies-diamonds.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-106664\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/06\/Amodea-anello-Platinum-spinel-rubies-diamonds.jpg\" alt=\"Amodea, anello in platino con diamanti, rubini e spinello viola\" width=\"709\" height=\"521\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/06\/Amodea-anello-Platinum-spinel-rubies-diamonds.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/06\/Amodea-anello-Platinum-spinel-rubies-diamonds-300x220.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/06\/Amodea-anello-Platinum-spinel-rubies-diamonds-75x55.jpg 75w, https:\/\/gioiellis.com\/wp-content\/uploads\/2022\/06\/Amodea-anello-Platinum-spinel-rubies-diamonds-400x294.jpg 400w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-106664\" class=\"wp-caption-text\">Amodea, anello in platino con diamanti, rubini e spinello viola<\/figcaption><\/figure>\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>Le spinelle est devenu une partie des pierres du mois d&rsquo;ao\u00fbt. Voici ses caract\u00e9ristiques: pouvez-vous le distinguer d&rsquo;un rubis? &#x2666; \ufe0e En 2016, Jewelers of America et American Gem Trade Association ont d\u00e9cid\u00e9 d&rsquo;ajouter le spinelle \u00e0 la liste officielle des pierres de naissance en ao\u00fbt. Le spinelle, en somme, soutient le sceptre de pierre du mois au p\u00e9ridot. En tout \u00e9tat de cause, le spinelle est une pierre de plus en plus utilis\u00e9e, m\u00eame en haute joaillerie, gr\u00e2ce \u00e0 ses caract\u00e9ristiques. Histoire. Le spinelle a \u00e9galement \u00e9t\u00e9 appel\u00e9 \u00ab\u00a0grand imposteur des collections royales\u00a0\u00bb. Oui, car beaucoup de pierres pr\u00e9cieuses<\/p>\n","protected":false},"author":6,"featured_media":93919,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[15454],"tags":[1864],"class_list":["post-18121","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-gems","tag-spinello","style--link-1"],"acf":[],"_links":{"self":[{"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/posts\/18121","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/users\/6"}],"replies":[{"embeddable":true,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/comments?post=18121"}],"version-history":[{"count":3,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/posts\/18121\/revisions"}],"predecessor-version":[{"id":128261,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/posts\/18121\/revisions\/128261"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/media\/93919"}],"wp:attachment":[{"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/media?parent=18121"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/categories?post=18121"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/tags?post=18121"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}