{"id":75664,"date":"2026-03-30T12:08:19","date_gmt":"2026-03-30T16:08:19","guid":{"rendered":"https:\/\/canadagold.ca\/?p=75664"},"modified":"2026-09-29T17:27:29","modified_gmt":"2026-09-29T21:27:29","slug":"gold-101-who-is-troy","status":"publish","type":"post","link":"https:\/\/canadagold.ca\/fr\/gold-101-who-is-troy\/","title":{"rendered":"L'or 101 : Qui est Troy et quel est le rapport avec une once d'or ?"},"content":{"rendered":"<em>Il s'agit d'une s\u00e9rie d'articles de blog fournis par Canada Gold pour informer nos clients sur les principes fondamentaux de l'achat et de la vente d'or.<\/em>\r\n\r\n<em>Pour consulter les articles pr\u00e9c\u00e9dents de cette s\u00e9rie<\/em>\r\n<ul>\r\n \t<li><em>Comment se fixe le cours de l'or ? Cliquez ici <a href=\"https:\/\/canadagold.ca\/fr\/gold-101-how-is-gold-priced\/\">ici.<\/a><\/em><\/li>\r\n \t<li><em>Cours au comptant vs prix d'achat, cliquez ici <a href=\"https:\/\/canadagold.ca\/fr\/74821-2\/\">ici.<\/a><\/em><\/li>\r\n<\/ul>\r\nVous avez peut-\u00eatre d\u00e9j\u00e0 entendu parler de ce terme<strong> once troy<\/strong> en consultant les cours de l\u2019or ou de l\u2019argent, vous vous \u00eates peut-\u00eatre demand\u00e9 :\n\n\u201c Est-ce que c\u2019est la m\u00eame chose qu\u2019une once ordinaire ? \u201d\n\nC\u2019est une excellente question, et la r\u00e9ponse est non.\r\n\r\nEn mati\u00e8re de m\u00e9taux pr\u00e9cieux comme l'or et l'argent, le secteur utilise un syst\u00e8me de mesure diff\u00e9rent de celui que nous employons pour les produits du quotidien, tels que l'alimentation ou le transport. Comprendre cette diff\u00e9rence peut vous aider \u00e0 mieux appr\u00e9hender les prix, le poids et la valeur lorsque vous achetez ou vendez des m\u00e9taux pr\u00e9cieux.\n\nVoyons cela de plus pr\u00e8s.\r\n<h2>Qu'est-ce qu'une once troy ?<\/h2>\r\nA<strong> once troy<\/strong> C'est l'unit\u00e9 de poids standard utilis\u00e9e pour les m\u00e9taux pr\u00e9cieux tels que l'or, l'argent, le platine et le palladium.\n\nUne once troy \u00e9quivaut \u00e0 <strong>31,103 grammes<\/strong>.\n\nIl s'agit de l'unit\u00e9 de mesure utilis\u00e9e dans le monde entier pour fixer le prix des m\u00e9taux pr\u00e9cieux. Ainsi, lorsque vous voyez le prix de l'or ou de l'argent affich\u00e9 en ligne, il s'agit presque toujours du prix au <strong>once troy<\/strong>, et non une once standard.\r\n<h2>Pourquoi parle-t-on d'\u00ab once troy \u00bb ?<\/h2>\r\nLe terme<strong> once troy<\/strong> vient de la ville de <strong>Troyes<\/strong> en France, qui \u00e9tait une plaque tournante commerciale majeure au Moyen \u00c2ge.\n\nLes marchands avaient besoin d'un moyen fiable pour peser leurs marchandises de valeur ; ils ont donc mis au point un syst\u00e8me de poids normalis\u00e9. Ce syst\u00e8me est devenu connu sous le nom de <strong>syst\u00e8me troy<\/strong>, et elle est encore utilis\u00e9e aujourd'hui pour \u00e9valuer les m\u00e9taux pr\u00e9cieux partout dans le monde.\n\nCela peut sembler anachronique, mais la raison pour laquelle cette m\u00e9thode s'est impos\u00e9e est simple : elle offre un moyen coh\u00e9rent et fiable d'\u00e9valuer les mat\u00e9riaux de valeur.\r\n<h2>Qu'est-ce qu'une once standard ?<\/h2>\r\nL'once que la plupart des gens connaissent est appel\u00e9e \u00ab once avoirdupois \u00bb, souvent simplement d\u00e9sign\u00e9e sous le nom d'\u00ab once ordinaire \u00bb.\n\nC'est l'unit\u00e9 de mesure utilis\u00e9e pour des objets du quotidien tels que :\r\n<ul>\r\n \t<li>alimentation<\/li>\r\n \t<li>paquets<\/li>\r\n \t<li>articles m\u00e9nagers<\/li>\r\n \t<li>frais de port et d'exp\u00e9dition<\/li>\r\n<\/ul>\r\nUne once standard p\u00e8se <strong>28,35 grammes<\/strong>, qui est l\u00e9g\u00e8rement plus l\u00e9g\u00e8re qu'une once troy.\r\n<h2>La diff\u00e9rence, c'est tout simple<\/h2>\r\nVoici l'essentiel \u00e0 retenir.\r\n\r\n<strong>Une once troy p\u00e8se plus lourd qu'une once ordinaire.<\/strong>\r\n<ul>\r\n \t<li>1 once troy = <strong>31,103 grammes<\/strong><\/li>\r\n \t<li>1 once standard = <strong>28,35 grammes<\/strong><\/li>\r\n<\/ul>\r\nCela signifie qu'une once troy \u00e9quivaut \u00e0 environ <strong>10 % plus lourd<\/strong> qu'une once ordinaire.\n\nLa diff\u00e9rence peut sembler minime, mais lorsqu'il s'agit de m\u00e9taux pr\u00e9cieux, m\u00eame de l\u00e9g\u00e8res variations de poids peuvent avoir une incidence sur la valeur.\r\n<h2>Pourquoi les m\u00e9taux pr\u00e9cieux sont-ils mesur\u00e9s en onces troy ?<\/h2>\r\nLe secteur des m\u00e9taux pr\u00e9cieux utilise le syst\u00e8me troy, car celui-ci garantit une uniformit\u00e9 sur l'ensemble des march\u00e9s \u00e0 travers le monde.\n\nL'utilisation d'une m\u00eame unit\u00e9 de mesure standard permet de garantir :\r\n<ul>\r\n \t<li>une tarification \u00e9quitable et pr\u00e9cise<\/li>\r\n \t<li>poids uniformes pour les pi\u00e8ces et les lingots<\/li>\r\n \t<li>des comparaisons fiables entre acheteurs et vendeurs<\/li>\r\n<\/ul>\r\nEn r\u00e9sum\u00e9, cela garantit la transparence et l'uniformit\u00e9 des proc\u00e9dures, ce qui est particuli\u00e8rement important lorsqu'il s'agit de mat\u00e9riaux de grande valeur.\r\n<h2>O\u00f9 trouver des onces troy<\/h2>\r\nC'est surtout dans les cas suivants que l'on utilise le plus souvent les onces troy :\r\n<ul>\r\n \t<li>acheter ou vendre de l'or ou de l'argent<\/li>\r\n \t<li>consulter les cours en temps r\u00e9el des m\u00e9taux pr\u00e9cieux<\/li>\r\n \t<li>peser des pi\u00e8ces ou des lingots d'or<\/li>\r\n \t<li>calcul de la valeur des bijoux de r\u00e9cup\u00e9ration<\/li>\r\n<\/ul>\r\nPar exemple, un mod\u00e8le standard <strong>Feuille d'\u00e9rable d'or canadienne<\/strong> La pi\u00e8ce contient <strong>une once troy d'or<\/strong>, ce qui correspond \u00e0 environ 31,1 grammes.\r\n<h2>Pourquoi est-ce important lors de la vente de bijoux ou de m\u00e9taux pr\u00e9cieux ?<\/h2>\r\nLorsque les clients apportent des objets dans nos magasins, l\u2019une des questions qui revient le plus souvent est :\n\n\u201c Comment calculez-vous la valeur ? \u201d\r\n\r\nLe poids joue un r\u00f4le important dans la r\u00e9ponse.\n\nChez Canada Gold, les objets sont pes\u00e9s \u00e0 l'aide du m\u00eame syst\u00e8me de mesure standard utilis\u00e9 dans le monde entier. Cela garantit pr\u00e9cision et \u00e9quit\u00e9 lors de l'\u00e9valuation de la valeur.\n\nCela signifie \u00e9galement que les clients peuvent comparer les prix en toute confiance, sachant qu'ils reposent sur une unit\u00e9 de mesure uniforme.\r\n<h2>Vous souhaitez conna\u00eetre la valeur de votre or ou de votre argent ?<\/h2>\r\nSi vous avez des doutes quant \u00e0 la mani\u00e8re dont vos objets sont mesur\u00e9s ou \u00e9valu\u00e9s, n'h\u00e9sitez pas \u00e0 passer nous voir pour nous poser vos questions.\n\nNotre \u00e9quipe se chargera de :\r\n<ul>\r\n \t<li><span style=\"font-weight: 400;\">testez vos articles<\/span><\/li>\r\n \t<li><span style=\"font-weight: 400;\">v\u00e9rifier la puret\u00e9<\/span><\/li>\r\n \t<li><span style=\"font-weight: 400;\">les peser avec pr\u00e9cision<\/span><\/li>\r\n \t<li><span style=\"font-weight: 400;\">expliquer la proc\u00e9dure \u00e9tape par \u00e9tape<\/span><\/li>\r\n<\/ul>\r\nVous n'\u00eates absolument pas oblig\u00e9 de vendre. Notre objectif est simplement de vous aider \u00e0 comprendre ce que vous poss\u00e9dez et comment sa valeur est d\u00e9termin\u00e9e.\r\n\r\n<span style=\"font-weight: 200; font-size: 0.8em;\"><i>Photo gracieusement fournie par <a href=\"https:\/\/www.vecteezy.com\/free-photos\/gold-scale\" target=\"_blank\">Vecteezy<\/a><\/i><\/span>","protected":false},"excerpt":{"rendered":"","protected":false},"author":13,"featured_media":75665,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-75664","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Gold 101: Who is Troy and What Does He Have to Do with an Ounce of Gold? - Canada Gold<\/title>\n<meta name=\"description\" content=\"What is a troy ounce in gold? 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