What Is 925 Silver? Silver Purity Explained Simply
Jewelry Materials · July 28, 2026 · 4 min read
925 silver — also called sterling silver — is an alloy that is 92.5% pure silver and 7.5% other metals (usually copper). The added metals give silver strength, because pure 999 silver is too soft for jewelry that needs to hold its shape, like earring posts and ring bands.
Why 92.5% and not 100%?
Pure silver is soft and bends easily, which is fine for coins but not for everyday jewelry. Mixing in a little copper makes the silver strong and durable while keeping its brilliant white color — which is why 925 sterling silver is the industry standard worldwide.
How to check if your silver is real
- Look for the 925 hallmark stamped on the piece.
- Genuine silver tarnishes slowly — look for a mild darkening over time.
- Real silver is heavier than plated alternatives of the same size.
- Buy from a certified seller with a certificate of authenticity.
925 silver in pearl jewelry
For pearl earrings, necklaces, and rings, 925 silver fittings are ideal — they're hypoallergenic, durable, and beautifully complement the soft lustre of freshwater pearls. At D Royals, our silver pearl fittings are hallmarked 925, and gold-plated options carry 18K plating over quality base metal.
925 vs 999 silver at a glance
What is 925 silver? 925 sterling vs pure 999 silver
| Property | 925 sterling silver | 999 fine silver |
|---|---|---|
| Silver content | 92.5% silver + 7.5% copper | 99.9% pure silver |
| Strength | Strong, holds shape for daily wear | Soft, bends easily |
| Best for | Earring posts, rings, necklace fittings | Coins, bars, display pieces |
| Hallmark | 925 | 999 |
| Care | Polish gently, store dry | Store carefully, scratches easily |
Caring for 925 silver
Store silver pieces separately in a dry pouch, polish gently with a soft cloth, and avoid perfume and chlorinated water. With light care, 925 silver pearl jewelry stays bright for years.
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