{"id":284829,"date":"2026-03-28T12:49:54","date_gmt":"2026-03-28T01:49:54","guid":{"rendered":"https:\/\/arabcollector.com\/?page_id=284829"},"modified":"2026-03-28T13:01:04","modified_gmt":"2026-03-28T02:01:04","slug":"grading-companies-comparison","status":"publish","type":"page","link":"https:\/\/arabcollector.com\/en\/grading-tools\/grading-companies-comparison\/","title":{"rendered":"Websites for appraising old coins and stamps"},"content":{"rendered":"<h2 style=\"text-align: right;\">Best websites for appraising antique coins and stamps: Global Companies Directory<\/h2>\n<p style=\"text-align: right;\">If you&#039;re looking for websites to appraise antique coins or want to document your rare collections, choosing the right source is what distinguishes a hobbyist from a professional collector. In the world of historical collectibles, condition grade is the sole criterion that determines monetary value at major auctions.<\/p>\n<p style=\"text-align: right;\">Whether your collection includes gold or silver coins, rare banknotes, or even royal stamps, placing them in a capsule certified by international classification companies gives them a \u201cbirth certificate\u201d that guarantees their authenticity and protects them from damage forever.<\/p>\n<p style=\"text-align: right;\">The \u201cPrecious Collector\u2019s Gallery\u201d offers you this interactive guide to comparing the world\u2019s top cataloging giants, to help you make the best decision for each category of your collection:<\/p>\n<p style=\"text-align: right;\">Coins: Learn the difference between PCGS and NGC in the classification of ancient and modern coins.<\/p>\n<p style=\"text-align: right;\">Banknotes: Discover why PMG is the first choice for evaluating Arab and international banknotes.<\/p>\n<p style=\"text-align: right;\">Postage stamps: Compare the best bodies that grant certificates of authenticity for historical and rare stamps.<\/p>\n\n\n<div class=\"ultimate-wrapper\">\n\n<style>\n\/* KEEP CSS LOCAL TO AVOID THEME CONFLICT *\/\n.ultimate-wrapper * { box-sizing: border-box; }\n\n.ultimate-wrapper {\n    max-width: 1200px;\n    margin: 20px auto;\n    background: white;\n    border-radius: 20px;\n    box-shadow: 0 15px 60px rgba(0,0,0,0.12);\n    overflow: hidden;\n    border: 1px solid #e1e1e1;\n    font-family: 'Cairo', sans-serif;\n    direction: rtl;\n}\n\n.hero-header {\n    background: linear-gradient(135deg, #0a2342 0%, #1a3a5f 100%);\n    color: white;\n    padding: 50px 20px;\n    text-align: center;\n    border-bottom: 6px solid #b38b2d;\n}\n\n.hero-header h1 { color: #b38b2d; margin:0; font-family: 'Amiri', serif; font-size: 32px; }\n.hero-header p { margin: 10px 0 0; opacity: 0.9; }\n\n.tool-bar {\n    background: #eee;\n    padding: 15px 30px;\n    display: flex;\n    justify-content: space-between;\n    align-items: center;\n    flex-wrap: wrap;\n    gap: 15px;\n}\n\n.search-box {\n    padding: 10px 20px;\n    border-radius: 25px;\n    border: 1px solid #ccc;\n    width: 100%;\n    max-width: 300px;\n    font-family: 'Cairo';\n    outline: none;\n}\n\n.tab-switcher {\n    display: flex;\n    background: #fff;\n    border-bottom: 1px solid #ddd;\n    overflow-x: auto;\n}\n\n.tab-btn {\n    flex: 1;\n    padding: 20px;\n    cursor: pointer;\n    border: none;\n    background: #f9f9f9;\n    font-weight: bold;\n    font-size: 16px;\n    transition: 0.3s;\n    border-bottom: 4px solid transparent;\n    min-width: 150px;\n    font-family: 'Cairo';\n}\n\n.tab-btn.active {\n    background: white;\n    color: #0a2342;\n    border-bottom: 4px solid #b38b2d;\n}\n\n.content-area { display: none; padding: 30px; animation: fadeIn 0.5s ease; }\n.content-area.active { display: block; }\n\n.expert-box {\n    background: #fffdf2;\n    border-right: 6px solid #b38b2d;\n    padding: 20px;\n    margin-bottom: 25px;\n    border-radius: 8px;\n    font-size: 16px;\n}\n\n.table-responsive { overflow-x: auto; }\ntable { width: 100%; border-collapse: collapse; min-width: 900px; }\nth { background: #f8f9fa; padding: 15px; border-bottom: 2px solid #eee; text-align: center; color: #0a2342; }\ntd { padding: 15px; border-bottom: 1px solid #eee; text-align: center; vertical-align: middle; }\n\n.badge { padding: 5px 12px; border-radius: 20px; color: white; font-size: 12px; font-weight: bold; }\n.usa { background: #34495e; }\n.uk { background: #c0392b; }\n.eu { background: #2980b9; }\n\n.status-tag { color: #27ae60; font-weight: bold; }\n\n@keyframes fadeIn { from { opacity: 0; transform: translateY(10px); } to { opacity: 1; transform: translateY(0); } }\n\n@media (max-width: 768px) {\n    .tool-bar { flex-direction: column; text-align: center; }\n}\n<\/style>\n\n<header class=\"hero-header\">\n    <h1>The Complete Guide to Rare Collectibles Appraisal 2026<\/h1>\n    <p>The primary reference for companies classifying coins, banknotes, and postage stamps<\/p>\n<\/header>\n\n<div class=\"tool-bar\">\n    <div>\ud83d\udccd Data update: March 2026<\/div>\n    <input type=\"text\" class=\"search-box\" id=\"tableSearch\" placeholder=\"Search for a company or specialization...\">\n<\/div>\n\n<nav class=\"tab-switcher\">\n    <button class=\"tab-btn active\" data-tab=\"coins\">\ud83e\ude99 Coins<\/button>\n    <button class=\"tab-btn\" data-tab=\"banknotes\">\ud83d\udcb5 Paper money<\/button>\n    <button class=\"tab-btn\" data-tab=\"stamps\">\u2709\ufe0f Postage stamps<\/button>\n<\/nav>\n\n<div id=\"coins\" class=\"content-area active\">\n    <div class=\"expert-box\">\n        <strong>\ud83d\udca1 Professional collector&#039;s tip:<\/strong> If you are targeting global auction markets, then <strong>PCGS<\/strong> \u0648 <strong>NGC<\/strong> These are the two strongest options to guarantee the highest selling price.\n    <\/div>\n    <div class=\"table-responsive\">\n        <table>\n            <thead>\n                <tr>\n                    <th>Company<\/th>\n                    <th>country<\/th>\n                    <th>Strengths<\/th>\n                    <th>Protection<\/th>\n                    <th>market value<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td><strong>PCGS<\/strong><\/td>\n                    <td><span class=\"badge usa\">USA<\/span><\/td>\n                    <td>American gold and rarities<\/td>\n                    <td>Slab is scratch-resistant<\/td>\n                    <td><span class=\"status-tag\">\u2b50 Highest priced<\/span><\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>NGC<\/strong><\/td>\n                    <td><span class=\"badge usa\">USA<\/span><\/td>\n                    <td>Global and Islamic currencies<\/td>\n                    <td>High-definition white frame<\/td>\n                    <td><span class=\"status-tag\">\u2b50 Global standard<\/span><\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>ANACS<\/strong><\/td>\n                    <td><span class=\"badge usa\">USA<\/span><\/td>\n                    <td>Minting Errors<\/td>\n                    <td>Unique curved design<\/td>\n                    <td>Good for amateurs<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>ICG<\/strong><\/td>\n                    <td><span class=\"badge usa\">USA<\/span><\/td>\n                    <td>Speed and cost<\/td>\n                    <td>Very good protection<\/td>\n                    <td>middle<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n    <\/div>\n<\/div>\n\n<div id=\"banknotes\" class=\"content-area\">\n    <div class=\"expert-box\">\n        <strong>\ud83d\udca1 Technical Note:<\/strong> Paper classification depends on the quality of the paper fibers and the presence of the [unclear] mark. <strong>EPQ<\/strong> In PMG, which doubles the value of paper currency.\n    <\/div>\n    <div class=\"table-responsive\">\n        <table>\n            <thead>\n                <tr>\n                    <th>Company<\/th>\n                    <th>country<\/th>\n                    <th>Classification accuracy<\/th>\n                    <th>Trust in selling<\/th>\n                    <th>Issue Coverage<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td><strong>PMG<\/strong><\/td>\n                    <td><span class=\"badge usa\">USA<\/span><\/td>\n                    <td>Very strict (70 points)<\/td>\n                    <td><span class=\"status-tag\">\ud83c\udfc6 Global leader<\/span><\/td>\n                    <td>Comprehensive (all countries)<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>PCGS Banknote<\/strong><\/td>\n                    <td><span class=\"badge usa\">USA<\/span><\/td>\n                    <td>Ultra precision<\/td>\n                    <td>Excellent<\/td>\n                    <td>Strong for the American<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Legacy Currency<\/strong><\/td>\n                    <td><span class=\"badge usa\">USA<\/span><\/td>\n                    <td>seasoned experts<\/td>\n                    <td>trusted<\/td>\n                    <td>Older versions<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n    <\/div>\n<\/div>\n\n<div id=\"stamps\" class=\"content-area\">\n    <div class=\"expert-box\">\n        <strong>\ud83d\udca1 The fundamental difference:<\/strong> In classic stamps (such as those of King Fuad), certificates of authenticity from <strong>RPSL<\/strong> Much more important than the digital rating.\n    <\/div>\n    <div class=\"table-responsive\">\n        <table>\n            <thead>\n                <tr>\n                    <th>The Foundation<\/th>\n                    <th>country<\/th>\n                    <th>Type of service<\/th>\n                    <th>legal power<\/th>\n                    <th>Specialization<\/th>\n                <\/tr>\n            <\/thead>\n            <tbody>\n                <tr>\n                    <td><strong>RPSL<\/strong><\/td>\n                    <td><span class=\"badge uk\">UK<\/span><\/td>\n                    <td>Expert Ownership Certificate<\/td>\n                    <td><span class=\"status-tag\">\ud83d\udee1\ufe0f Legally the strongest<\/span><\/td>\n                    <td>Britain and the Colonies<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>Stanley Gibbons<\/strong><\/td>\n                    <td><span class=\"badge uk\">UK<\/span><\/td>\n                    <td>Evaluation and Catalog<\/td>\n                    <td>historical reference<\/td>\n                    <td>Global comprehensive<\/td>\n                <\/tr>\n                <tr>\n                    <td><strong>PSE<\/strong><\/td>\n                    <td><span class=\"badge usa\">USA<\/span><\/td>\n                    <td>Digital rating + capsule<\/td>\n                    <td>Excellent for auctions<\/td>\n                    <td>American and modern stamps<\/td>\n                <\/tr>\n            <\/tbody>\n        <\/table>\n    <\/div>\n<\/div>\n\n<\/div>\n\n<script>\n(function(){\n\nfunction initTabs(){\n    const tabs = document.querySelectorAll(\".tab-btn\");\n    const sections = document.querySelectorAll(\".content-area\");\n    const search = document.getElementById(\"tableSearch\");\n\n    if (!tabs.length) return;\n\n    tabs.forEach(btn=>{\n        btn.addEventListener(\"click\", function(){\n            tabs.forEach(t=>t.classList.remove(\"active\"));\n            sections.forEach(s=>{\n                s.classList.remove(\"active\");\n                s.style.display = \"none\";\n            });\n\n            this.classList.add(\"active\");\n            const id = this.dataset.tab;\n            const target = document.getElementById(id);\n            if(target) {\n                target.classList.add(\"active\");\n                target.style.display = \"block\";\n            }\n        });\n    });\n\n    if(search){\n        search.addEventListener(\"keyup\", function(){\n            const val = this.value.toLowerCase();\n            const active = document.querySelector(\".content-area.active\");\n            if(!active) return;\n\n            active.querySelectorAll(\"tbody tr, table tr\").forEach((row,i)=>{\n                if(i===0) return;\n                const text = row.innerText.toLowerCase();\n                row.style.display = text.includes(val) ? \"\" : \"none\";\n            });\n        });\n    }\n}\n\n\/* FIX FOR WP ROCKET \/ LAZY LOAD *\/\nif(document.readyState === \"loading\"){\n    document.addEventListener(\"DOMContentLoaded\", initTabs);\n}else{\n    initTabs();\n}\n\n})();\n<\/script>\n\n\n<p style=\"text-align: right;\">Learn about<a href=\"https:\/\/arabcollector.com\/en\/grading-tools\/\"> Assessment tools<\/a> For the collections of the Arab collector\u00a0<\/p>\n<h2 style=\"text-align: right;\">Why should you care about searching for reliable old coin appraisal websites?<\/h2>\n<p style=\"text-align: right;\">Finding reliable antique coin appraisal websites is not just a luxury, but a security and investment necessity. Here are the benefits you&#039;ll gain from using these international sites:<\/p>\n<p style=\"text-align: right;\">Increased market value: Graded currency is sold at a much higher price than raw currency due to buyer confidence in the digital valuation.<\/p>\n<p style=\"text-align: right;\">Authenticity and documentation: These companies guarantee the detection of counterfeit and forged currency, papers, and stamps with microscopic accuracy.<\/p>\n<p style=\"text-align: right;\">Protecting the collectibles: Coins and banknotes are placed in airtight capsules, while stamps are inspected and certificates are issued proving the quality of the adhesive and the condition of the edges, protecting them from moisture and oxidation.<\/p>\n\n\n<div style=\"max-width: 900px; margin: 40px auto; font-family: 'Cairo', sans-serif; direction: rtl;\">\n    <h2 style=\"color: #0a2342; border-bottom: 2px solid #b38b2d; padding-bottom: 10px; margin-bottom: 25px;\">Frequently asked questions about appraising rare collectibles<\/h2>\n    \n    <div style=\"margin-bottom: 15px; border: 1px solid #eee; border-radius: 8px; background: #fff;\">\n        <div style=\"padding: 15px; background: #fdfaf1; font-weight: bold; color: #0a2342;\">\n            What is the best website for evaluating ancient coins worldwide?\n        <\/div>\n        <div style=\"padding: 15px; line-height: 1.8; color: #444;\">\n            My company <strong>PCGS<\/strong> \u0648 <strong>NGC<\/strong> They are undoubtedly the best. If your coin is American or a rare gold one, go to PCGS, but if it is an old Arab, Egyptian, or Islamic coin, NGC is the most widespread and reliable in the global market.\n        <\/div>\n    <\/div>\n\n    <div style=\"margin-bottom: 15px; border: 1px solid #eee; border-radius: 8px; background: #fff;\">\n        <div style=\"padding: 15px; background: #fdfaf1; font-weight: bold; color: #0a2342;\">\n            How are rare paper currencies (banknotes) valued?\n        <\/div>\n        <div style=\"padding: 15px; line-height: 1.8; color: #444;\">\n            It is classified <strong>Paper Money<\/strong> Based on a scale of 1 to 70 points. The company is considered <strong>PMG<\/strong> It is the primary reference for evaluating paper, where the quality of the paper, the sharpness of the colors, and the uniformity of the edges are examined, and then it is placed in a highly transparent plastic sleeve to protect it from moisture and touch.\n        <\/div>\n    <\/div>\n\n    <div style=\"margin-bottom: 15px; border: 1px solid #eee; border-radius: 8px; background: #fff;\">\n        <div style=\"padding: 15px; background: #fdfaf1; font-weight: bold; color: #0a2342;\">\n            Is appraising postage stamps necessary for selling them?\n        <\/div>\n        <div style=\"padding: 15px; line-height: 1.8; color: #444;\">\n            Yes, especially in <strong>Royal postage stamps<\/strong> And rare ones. Stamp appraisals by organizations such as <strong>RPSL<\/strong> or <strong>Stanley Gibbons<\/strong> The authenticity of the backing adhesive and the absence of any hidden restoration are proven, which greatly increases the price of the stamp at international auctions.\n        <\/div>\n    <\/div>\n\n    <div style=\"margin-bottom: 15px; border: 1px solid #eee; border-radius: 8px; background: #fff;\">\n        <div style=\"padding: 15px; background: #fdfaf1; font-weight: bold; color: #0a2342;\">\n            Do websites that assess old coins protect against counterfeiting?\n        <\/div>\n        <div style=\"padding: 15px; line-height: 1.8; color: #444;\">\n            Certainly, the primary function of these companies is &quot;authentication.&quot; The capsule (slab) containing the coin incorporates security technologies and a hologram that are difficult to counterfeit, giving the buyer complete confidence that the coin is genuine 100%.\n        <\/div>\n    <\/div>\n<\/div>","protected":false},"excerpt":{"rendered":"<p>\u0623\u0641\u0636\u0644 \u0645\u0648\u0627\u0642\u0639 \u062a\u0642\u064a\u064a\u0645 \u0627\u0644\u0639\u0645\u0644\u0627\u062a \u0627\u0644\u0642\u062f\u064a\u0645\u0629 \u0648\u0627\u0644\u0637\u0648\u0627\u0628\u0639: \u062f\u0644\u064a\u0644 \u0627\u0644\u0634\u0631\u0643\u0627\u062a \u0627\u0644\u0639\u0627\u0644\u0645\u064a\u0629 \u0625\u0630\u0627 \u0643\u0646\u062a \u062a\u0628\u062d\u062b \u0639\u0646 \u0645\u0648\u0627\u0642\u0639 \u062a\u0642\u064a\u064a\u0645 \u0627\u0644\u0639\u0645\u0644\u0627\u062a \u0627\u0644\u0642\u062f\u064a\u0645\u0629 \u0623\u0648 \u062a\u0631\u063a\u0628 \u0641\u064a \u062a\u0648\u062b\u064a\u0642 \u0646\u0648\u0627\u062f\u0631 \u0645\u0642\u062a\u0646\u064a\u0627\u062a\u0643\u060c \u0641\u0625\u0646 \u0627\u062e\u062a\u064a\u0627\u0631 \u0627\u0644\u0648\u062c\u0647\u0629 \u0627\u0644\u0635\u062d\u064a\u062d\u0629 \u0647\u0648 \u0645\u0627 \u064a\u0641\u0631\u0642 \u0628\u064a\u0646 &#8220;\u0647\u0627\u0648\u064d&#8221; \u0648 &#8220;\u0645\u0633\u062a\u062b\u0645\u0631 \u0645\u062d\u062a\u0631\u0641&#8221;. \u0641\u064a \u0639\u0627\u0644\u0645 \u0627\u0644\u0645\u0642\u062a\u0646\u064a\u0627\u062a \u0627\u0644\u062a\u0627\u0631\u064a\u062e\u064a\u0629\u060c \u062a\u0639\u062a\u0628\u0631 \u062f\u0631\u062c\u0629 \u0627\u0644\u062d\u0627\u0644\u0629 (Grade) \u0647\u064a \u0627\u0644\u0645\u0639\u064a\u0627\u0631 \u0627\u0644\u0648\u062d\u064a\u062f \u0627\u0644\u0630\u064a \u064a\u062d\u062f\u062f \u0627\u0644\u0642\u064a\u0645\u0629 \u0627\u0644\u0645\u0627\u0644\u064a\u0629 \u0641\u064a \u0627\u0644\u0645\u0632\u0627\u062f\u0627\u062a \u0627\u0644\u0643\u0628\u0631\u0649. \u0633\u0648\u0627\u0621 \u0643\u0627\u0646\u062a &hellip;<\/p>","protected":false},"author":1,"featured_media":0,"parent":284662,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_acf_changed":false,"wpupg_custom_link":[],"wpupg_custom_link_behaviour":[],"wpupg_custom_link_nofollow":[],"wpupg_custom_image":[],"wpupg_custom_image_id":[],"footnotes":""},"class_list":["post-284829","page","type-page","status-publish","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/arabcollector.com\/en\/wp-json\/wp\/v2\/pages\/284829","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/arabcollector.com\/en\/wp-json\/wp\/v2\/pages"}],"about":[{"href":"https:\/\/arabcollector.com\/en\/wp-json\/wp\/v2\/types\/page"}],"author":[{"embeddable":true,"href":"https:\/\/arabcollector.com\/en\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/arabcollector.com\/en\/wp-json\/wp\/v2\/comments?post=284829"}],"version-history":[{"count":0,"href":"https:\/\/arabcollector.com\/en\/wp-json\/wp\/v2\/pages\/284829\/revisions"}],"up":[{"embeddable":true,"href":"https:\/\/arabcollector.com\/en\/wp-json\/wp\/v2\/pages\/284662"}],"wp:attachment":[{"href":"https:\/\/arabcollector.com\/en\/wp-json\/wp\/v2\/media?parent=284829"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}