{"id":48243,"date":"2021-03-13T16:00:13","date_gmt":"2021-03-13T14:00:13","guid":{"rendered":"http:\/\/gioiellis.com\/?p=48243"},"modified":"2024-08-04T18:24:00","modified_gmt":"2024-08-04T16:24:00","slug":"le-perle-alla-prova-delleta","status":"publish","type":"post","link":"https:\/\/gioiellis.com\/fr\/le-perle-alla-prova-delleta\/","title":{"rendered":"Comment \u00e9tablir l&rsquo;\u00e2ge des perles"},"content":{"rendered":"<p><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<script><br \/>\n     (adsbygoogle = window.adsbygoogle || []).push({<br \/>\n          google_ad_client: \"ca-pub-1422720793454724\",<br \/>\n          enable_page_level_ads: true<br \/>\n     });<br \/>\n<\/script>x<\/p>\n<p><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block;\" data-ad-format=\"fluid\" data-ad-layout=\"image-side\" data-ad-layout-key=\"-fe+6a+31-k2+pr\" data-ad-client=\"ca-pub-1422720793454724\" data-ad-slot=\"8583266876\"><\/ins><br \/>\n<script><br \/>\n     (adsbygoogle = window.adsbygoogle || []).push({});<br \/>\n<\/script><\/p>\n<h4>L&rsquo;importance de l&rsquo;\u00e2ge pour \u00e9tablir leur v\u00e9ritable valeur de perles. Et m\u00eame s&rsquo;elle sont un faux &#x2666;<\/h4>\n<p>Voulez-vous savoir quel \u00e2ge a votre collier de perles? Peut-\u00eatre est-ce une information int\u00e9ressante si vous voulez acheter ou vendre le joyau d\u2019une valeur particuli\u00e8re. Aussi parce que certaines perles de culture et trait\u00e9es artificiellement perdent avec le temps leur lustre et, par cons\u00e9quent, leur valeur non seulement esth\u00e9tique, mais \u00e9galement commerciale. En fait, la valeur des perles est d\u00e9termin\u00e9e par une combinaison de brillance, de couleur, de taille, d\u2019absence de d\u00e9fauts de surface et de sym\u00e9trie. Toutes choses \u00e9tant \u00e9gales, cependant, plus la perle est grosse, plus elle est pr\u00e9cieuse. Les grosses perles parfaitement rondes sont rares et tr\u00e8s appr\u00e9ci\u00e9es, tandis que les perles en forme de larme sont souvent utilis\u00e9es dans les pendentifs.<\/p>\n<figure id=\"attachment_86456\" aria-describedby=\"caption-attachment-86456\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/10\/collana-di-perle.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-86456\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/10\/collana-di-perle.jpg\" alt=\"Le perle sono tra i materiali pi\u00f9 delicati\" width=\"709\" height=\"472\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/10\/collana-di-perle.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/10\/collana-di-perle-300x200.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/10\/collana-di-perle-83x55.jpg 83w, https:\/\/gioiellis.com\/wp-content\/uploads\/2020\/10\/collana-di-perle-400x266.jpg 400w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-86456\" class=\"wp-caption-text\">Le perle sono tra i materiali pi\u00f9 delicati<\/figcaption><\/figure>\n<h4>Le probl\u00e8me de l&rsquo;\u00e2ge reste. En moyenne, les perles sont r\u00e9colt\u00e9es au bout d&rsquo;un an pour Akoya, cultiv\u00e9 au Japon et en Chine, alors qu&rsquo;il faut deux \u00e0 quatre ans pour les plus sombres de Tahiti et les plus blanches ou dor\u00e9es des mers du Sud. Cela prend deux \u00e0 sept ans. obtenir ceux de l&rsquo;eau douce.<\/h4>\n<figure id=\"attachment_66796\" aria-describedby=\"caption-attachment-66796\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/10\/JE17030083-FLAT-FINAL.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-66796\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/10\/JE17030083-FLAT-FINAL.jpg\" alt=\"Orecchini in oro bianco e perle\" width=\"709\" height=\"467\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/10\/JE17030083-FLAT-FINAL.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/10\/JE17030083-FLAT-FINAL-300x198.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/10\/JE17030083-FLAT-FINAL-84x55.jpg 84w, https:\/\/gioiellis.com\/wp-content\/uploads\/2018\/10\/JE17030083-FLAT-FINAL-220x145.jpg 220w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-66796\" class=\"wp-caption-text\">Autore, orecchini in oro bianco e perle<\/figcaption><\/figure>\n<p>Si vous avez besoin de conna\u00eetre plus pr\u00e9cis\u00e9ment l\u2019\u00e2ge de vos perles, contactez un laboratoire sp\u00e9cialis\u00e9. Mais ils sont peu nombreux: l\u2019institut suisse de gemmologie (SSEF) peut se targuer d\u2019\u00eatre le premier laboratoire gemmologique au monde \u00e0 pouvoir introduire, en tant que service compl\u00e9mentaire pour les clients, la datation des perles.<\/p>\n<h4>La m\u00e9thode utilis\u00e9e est celle utilis\u00e9e dans le domaine scientifique pour la datation des d\u00e9couvertes arch\u00e9ologiques, en utilisant la m\u00e9thode au carbone 14 (14C). En fait, les perles sont en carbonate de calcium: pour cela, au contact du vinaigre ou des mati\u00e8res acides, elles fondent (soyez prudent).<\/h4>\n<figure id=\"attachment_70028\" aria-describedby=\"caption-attachment-70028\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/01\/yoko-london-earrings-.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-70028\" src=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/01\/yoko-london-earrings-.jpg\" alt=\"10mm South Sea pearls, 10.10cts diamonds, set in 18ct white gold. Price on application\" width=\"709\" height=\"614\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/01\/yoko-london-earrings-.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/01\/yoko-london-earrings--300x260.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/01\/yoko-london-earrings--64x55.jpg 64w, https:\/\/gioiellis.com\/wp-content\/uploads\/2019\/01\/yoko-london-earrings--400x346.jpg 400w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-70028\" class=\"wp-caption-text\">Yoko London, 10mm South Sea pearls, 10.10cts diamonds, set in 18ct white gold. Price on application<\/figcaption><\/figure>\n<p>Le syst\u00e8me est int\u00e9ressant, en particulier s\u2019il est n\u00e9cessaire de d\u00e9terminer le contexte historique des bijoux anciens, d\u2019une valeur particuli\u00e8re. De plus, le syst\u00e8me d&rsquo;analyse peut \u00e9galement \u00eatre utilis\u00e9 pour identifier les fraudes, par exemple lorsque des perles plus jeunes sont mont\u00e9es sur des bijoux anciens ou ont \u00e9t\u00e9 trait\u00e9es pour para\u00eetre plus vieilles. Une opportunit\u00e9 qui peut devenir fondamentale, par exemple, pour certaines pi\u00e8ces mises aux ench\u00e8res. La m\u00e9thode a d\u00e9j\u00e0 eu du succ\u00e8s dans certains cas symboliques. Par exemple, \u00e0 ce jour, les perles naturelles r\u00e9cup\u00e9r\u00e9es sur un navire ancr\u00e9 en Indon\u00e9sie et datant de 1200. <strong>Federico Graglia<\/strong><\/p>\n<p>&nbsp;<\/p>\n<figure id=\"attachment_29167\" aria-describedby=\"caption-attachment-29167\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/gioiellis.com\/wp-content\/uploads\/2015\/10\/perle-Cowdray.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-29167\" src=\"http:\/\/gioiellis.com\/wp-content\/uploads\/2015\/10\/perle-Cowdray.jpg\" alt=\"Le perle Cowdray, vendute per 7,5 milioni di dollari\" width=\"709\" height=\"363\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2015\/10\/perle-Cowdray.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2015\/10\/perle-Cowdray-300x154.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2015\/10\/perle-Cowdray-107x55.jpg 107w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-29167\" class=\"wp-caption-text\">Le perle Cowdray, vendute per 7,5 milioni di dollari<\/figcaption><\/figure>\n<figure id=\"attachment_48261\" aria-describedby=\"caption-attachment-48261\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/orecchini-rene-bonvin.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-48261\" src=\"http:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/orecchini-rene-bonvin.jpg\" alt=\"Orecchini a clip di Ren\u00e9 Bonvin\" width=\"709\" height=\"499\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/orecchini-rene-bonvin.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/orecchini-rene-bonvin-300x211.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/orecchini-rene-bonvin-78x55.jpg 78w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-48261\" class=\"wp-caption-text\">Orecchini a clip di Ren\u00e9 Bonvin<\/figcaption><\/figure>\n<figure id=\"attachment_48258\" aria-describedby=\"caption-attachment-48258\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/Un-importante-due-fili-di-perle-naturali-E-DIAMANTI-COLLANA-29.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-48258\" src=\"http:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/Un-importante-due-fili-di-perle-naturali-E-DIAMANTI-COLLANA-29.jpg\" alt=\"Collana di perle naturali e diamanti\" width=\"709\" height=\"531\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/Un-importante-due-fili-di-perle-naturali-E-DIAMANTI-COLLANA-29.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/Un-importante-due-fili-di-perle-naturali-E-DIAMANTI-COLLANA-29-300x225.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/Un-importante-due-fili-di-perle-naturali-E-DIAMANTI-COLLANA-29-73x55.jpg 73w, https:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/Un-importante-due-fili-di-perle-naturali-E-DIAMANTI-COLLANA-29-60x45.jpg 60w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-48258\" class=\"wp-caption-text\">Collana di perle naturali e diamanti<\/figcaption><\/figure>\n<p><a href=\"http:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/collana-perle.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"aligncenter size-full wp-image-48256\" src=\"http:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/collana-perle.jpg\" alt=\"collana-perle\" width=\"709\" height=\"498\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/collana-perle.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/collana-perle-300x211.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2017\/02\/collana-perle-78x55.jpg 78w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><\/p>\n<figure id=\"attachment_30244\" aria-describedby=\"caption-attachment-30244\" style=\"width: 709px\" class=\"wp-caption aligncenter\"><a href=\"http:\/\/gioiellis.com\/wp-content\/uploads\/2015\/11\/Turbante-ornamento-sarpesh-India-del-Sud-Hyderabad-1800-1850-set-di-diamanti-perle-e-spinello-in-sospensione-Collezione-Al-Thani-Gioielleria-Notizie-London.jpg\"><img loading=\"lazy\" decoding=\"async\" class=\"size-full wp-image-30244\" src=\"http:\/\/gioiellis.com\/wp-content\/uploads\/2015\/11\/Turbante-ornamento-sarpesh-India-del-Sud-Hyderabad-1800-1850-set-di-diamanti-perle-e-spinello-in-sospensione-Collezione-Al-Thani-Gioielleria-Notizie-London.jpg\" alt=\"Ornamento per turbante, Hyderabad, 1800-1850. Set di diamanti, perle e spinello\" width=\"709\" height=\"537\" title=\"\" srcset=\"https:\/\/gioiellis.com\/wp-content\/uploads\/2015\/11\/Turbante-ornamento-sarpesh-India-del-Sud-Hyderabad-1800-1850-set-di-diamanti-perle-e-spinello-in-sospensione-Collezione-Al-Thani-Gioielleria-Notizie-London.jpg 709w, https:\/\/gioiellis.com\/wp-content\/uploads\/2015\/11\/Turbante-ornamento-sarpesh-India-del-Sud-Hyderabad-1800-1850-set-di-diamanti-perle-e-spinello-in-sospensione-Collezione-Al-Thani-Gioielleria-Notizie-London-300x227.jpg 300w, https:\/\/gioiellis.com\/wp-content\/uploads\/2015\/11\/Turbante-ornamento-sarpesh-India-del-Sud-Hyderabad-1800-1850-set-di-diamanti-perle-e-spinello-in-sospensione-Collezione-Al-Thani-Gioielleria-Notizie-London-600x454.jpg 600w, https:\/\/gioiellis.com\/wp-content\/uploads\/2015\/11\/Turbante-ornamento-sarpesh-India-del-Sud-Hyderabad-1800-1850-set-di-diamanti-perle-e-spinello-in-sospensione-Collezione-Al-Thani-Gioielleria-Notizie-London-73x55.jpg 73w, https:\/\/gioiellis.com\/wp-content\/uploads\/2015\/11\/Turbante-ornamento-sarpesh-India-del-Sud-Hyderabad-1800-1850-set-di-diamanti-perle-e-spinello-in-sospensione-Collezione-Al-Thani-Gioielleria-Notizie-London-60x45.jpg 60w\" sizes=\"auto, (max-width: 709px) 100vw, 709px\" \/><\/a><figcaption id=\"caption-attachment-30244\" class=\"wp-caption-text\">Ornamento per turbante, Hyderabad, 1800-1850. Set di diamanti, perle e spinello<\/figcaption><\/figure>\n<p><script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><\/p>\n<p><!-- rettangolo grande --><br \/>\n<ins class=\"adsbygoogle\" style=\"display: inline-block; width: 336px; height: 280px;\" data-ad-client=\"ca-pub-1422720793454724\" data-ad-slot=\"8343610496\"><\/ins><br \/>\n<script><br \/>\n(adsbygoogle = window.adsbygoogle || []).push({});<br \/>\n<\/script><br \/>\n<script async src=\"\/\/pagead2.googlesyndication.com\/pagead\/js\/adsbygoogle.js\"><\/script><br \/>\n<ins class=\"adsbygoogle\" style=\"display: block;\" data-ad-format=\"autorelaxed\" data-ad-client=\"ca-pub-1422720793454724\" data-ad-slot=\"9203601299\"><\/ins><br \/>\n<script><br \/>\n     (adsbygoogle = window.adsbygoogle || []).push({});<br \/>\n<\/script><br \/>\n<\/p>","protected":false},"excerpt":{"rendered":"<p>x L&rsquo;importance de l&rsquo;\u00e2ge pour \u00e9tablir leur v\u00e9ritable valeur de perles. Et m\u00eame s&rsquo;elle sont un faux &#x2666; Voulez-vous savoir quel \u00e2ge a votre collier de perles? Peut-\u00eatre est-ce une information int\u00e9ressante si vous voulez acheter ou vendre le joyau d\u2019une valeur particuli\u00e8re. Aussi parce que certaines perles de culture et trait\u00e9es artificiellement perdent avec le temps leur lustre et, par cons\u00e9quent, leur valeur non seulement esth\u00e9tique, mais \u00e9galement commerciale. En fait, la valeur des perles est d\u00e9termin\u00e9e par une combinaison de brillance, de couleur, de taille, d\u2019absence de d\u00e9fauts de surface et de sym\u00e9trie. Toutes choses \u00e9tant \u00e9gales, cependant,<\/p>\n","protected":false},"author":6,"featured_media":86456,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1532,9579],"tags":[303],"class_list":["post-48243","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-da-sapere","category-perle","tag-perle","style--link-1"],"acf":[],"_links":{"self":[{"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/posts\/48243","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=48243"}],"version-history":[{"count":2,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/posts\/48243\/revisions"}],"predecessor-version":[{"id":128145,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/posts\/48243\/revisions\/128145"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/media\/86456"}],"wp:attachment":[{"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/media?parent=48243"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/categories?post=48243"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/gioiellis.com\/fr\/wp-json\/wp\/v2\/tags?post=48243"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}