{"id":20179,"date":"2025-06-03T11:53:09","date_gmt":"2025-06-03T15:53:09","guid":{"rendered":"https:\/\/www.truefacet.com\/guide\/?p=20179"},"modified":"2026-02-06T07:21:03","modified_gmt":"2026-02-06T12:21:03","slug":"what-does-585-mean-on-jewelry","status":"publish","type":"post","link":"https:\/\/www.truefacet.com\/guide\/what-does-585-mean-on-jewelry\/","title":{"rendered":"What Does 585 Mean on Jewelry? A Deep Dive Into Gold Purity"},"content":{"rendered":"
\"TrueFacet<\/a><\/div>

Have you ever looked closely at your gold jewelry and noticed a small engraving that reads <\/span>“585” <\/span>? If so, you might have wondered what it means. Is it a serial number? A brand mark? Or does it say something about the metal itself?<\/span><\/p>\n

In reality, the <\/span>585 stamp <\/span>is a hallmark used to indicate the <\/span>purity of gold <\/span>in a piece of jewelry<\/a>. It\u2019s a common marking found on gold items, especially those imported from Europe and other international markets.<\/span><\/p>\n

This guide will walk you through everything you need to know about <\/span>585 gold. <\/span>Whether you’re shopping for fine jewelry<\/a>, evaluating inherited pieces, or simply expanding your knowledge, this guide will give you the confidence to understand and appreciate 585-marked jewelry.<\/span><\/p>\n

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What Does the Number 585 Mean on Jewelry?<\/strong><\/h2>\n

The <\/span>“585” marking on jewelry indicates<\/span><\/a>\u00a0that the item contains <\/span>58.5% pure gold <\/span>, with the remaining <\/span>41.5% made up of other metals <\/span>such as 925 silver<\/a>, copper, zinc, or nickel. This combination creates an alloy that balances durability with beauty \u2014 making it ideal for everyday wear.<\/span><\/p>\n

Why Not Use 100% Pure Gold?<\/b><\/h3>\n

Gold in its purest form (known as\u00a0<\/span>24 karat gold<\/span><\/a>) is too soft for regular use in jewelry. Because it can easily bend, scratch, or deform under pressure, jewelers mix it with harder metals to create alloys that are more suitable for rings, necklaces, bracelets, and earrings.<\/span><\/p>\n

Understanding Karats vs. Millesimal Fineness<\/b><\/h3>\n

There are two main systems used around the world to express gold purity:<\/span><\/p>\n

1. The Karat System (Used Primarily in the U.S.)<\/b><\/h4>\n