When shopping for jewelry, you’ve likely noticed tiny engravings inside rings, such as "S925", "925", or "Sterling Silver." But what does this marking actually mean? Is it a sign of quality, or just a marketing label?
What Does "S925" Mean?
"S925" is an international stamp that certifies a piece is made of sterling silver—an alloy containing 92.5% pure silver and 7.5% other metals (usually copper).
Why 92.5% and not 100%?
Pure silver (999 fine) is too soft for jewelry—it bends and scratches easily.
The added 7.5% copper strengthens the metal, making it durable enough for rings, necklaces, and bracelets.
Other markings you might see:
"925" (same as S925, just without the "S")
"Ster" or "Sterling" (common in the U.S. and UK)
"925 Italy" (indicates Italian craftsmanship)
Is S925 Real Silver?
Yes! S925 is real silver. Here’s how it compares:
Why Does S925 Tarnish?
Sterling silver tarnishes because copper reacts with oxygen and sulfur in the air, forming a dark layer.
How to Prevent Tarnish:
✔ Store in an airtight bag (anti-tarnish pouches work best)
✔ Avoid contact with perfume, sweat, and chlorine
✔ Clean with a silver polishing cloth (not toothpaste—it’s abrasive!)
Pro Tip: If your ring turns black, soak it in warm water + baking soda + aluminum foil for 5 minutes to restore shine!
How to Tell If Your S925 Ring Is Fake
Since fake stamps exist, here’s how to test authenticity:
- The Magnet Test
Real silver is non-magnetic. If a magnet sticks, it’s fake.
- The Ice Test
Silver conducts heat rapidly. Place an ice cube on it—if it melts fast, it’s likely real.
- The Smell Test
Fake silver (especially nickel) often smells metallic. Real silver should be odorless.
For 100% certainty, take it to a jeweler for an acid test or XRF analysis.
Common Myths About S925 Rings
Myth 1: "925 Silver Is Cheap"
While affordable compared to gold, high-quality S925 is still premium. Designer brands use it!
Myth 2: "It’s Hypoallergenic"
Some people react to the 7.5% copper. If you have sensitive skin, look for nickel-free sterling silver.
Myth 3: "All 925 Rings Are the Same"
Craftsmanship matters! A handmade Italian 925 ring will last longer than a mass-produced one.
Final Verdict: Is S925 good quality?
Absolutely! S925 is the global standard for silver jewelry - durable, beautiful, and affordable. Just remember:
- Look for the mark (S925, 925, or Sterling)
- Test with a magnet to avoid fakes with plating
- Take good care of it to prevent tarnish
Now that you know what S925 means, you can make smarter choices about silver jewelry and make it last longer! At OBY, we use recycled silver and diamonds to create affordable jewelry for you, so come and shop it!
Diamond Star Ring
