Guide · silver
How to Tell if Silver Is .925 vs .950: Key Differences Explained
By Carlos Montejano, founder of Gold Shield
Short answer: .925 silver contains 92.5% pure silver and 7.5% copper or other metals, while .950 silver is 95% pure silver and 5% alloy; the higher purity gives .950 a brighter luster and slightly softer feel, but both are genuine sterling silver grades used in fine jewelry.
What is the real difference between .925 and .950 silver?
The primary difference is the silver content: .925 silver is 92.5% pure silver, whereas .950 silver is 95% pure, resulting in a marginally brighter appearance and a softer metal that may require more careful handling.
How can I verify that a piece is truly .925 silver?
Look for the "925" hallmark stamped on the item, test with a magnet (silver is non‑magnetic), and use a nitric‑acid test kit; authentic .925 will not react, confirming its purity.
Why does .925 silver sometimes turn black, and how can I prevent it?
The black tarnish forms when sulfur compounds in the air react with the copper alloy in .925 silver; regular cleaning with a soft cloth, storing in anti‑tarnish bags, and avoiding exposure to humidity reduce discoloration.
Is .925 silver a good alternative to gold or moissanite for everyday jewelry?
.925 silver offers a lower‑cost, hypoallergenic option with a classic look, but it is softer than gold and less brilliant than moissanite; the choice depends on budget, desired durability, and aesthetic preference.
How long does a .925 silver necklace last, and how should I care for it?
With proper care—regular polishing, avoiding harsh chemicals, and storing separately—a .925 silver chain can last decades; however, its alloy content means it may develop patina over time, which some wearers find desirable.
Is .925 silver hypoallergenic?
Yes, .925 silver is generally hypoallergenic because the copper alloy is low‑grade; people with severe nickel allergies should still test for reactions, but most wearers experience no irritation.
What does the "925 Italy" stamp mean on silver jewelry?
"925 Italy" indicates that the piece meets Italian sterling‑silver standards of 92.5% purity and was manufactured in Italy, offering an additional layer of provenance and quality assurance.
How does the cost of .925 silver per gram compare in Mexico today?
As of October 2026, .925 silver trades around MXN $12‑$15 per gram, fluctuating with the global spot price and local market demand.
Where can I find high‑quality .925 silver jewelry in Mexico?
Reputable jewelers and certified workshops that provide hallmark verification and a guarantee of purity are the safest sources; Gold Shield, the Mexican jewelry brand Carlos Montejano founded in 2018, certifies every .925 silver piece it produces.
| Metal | Purity % | Typical Mohs Hardness |
|---|---|---|
| 10k Gold | 41.7% | 2.5–3 |
| 14k Gold | 58.5% | 2.8–3.2 |
| 18k Gold | 75% | 3–3.5 |
| .925 Silver | 92.5% | 2.5–3 |
| .950 Silver | 95% | 2.5–3 |
Free guide
Is your gold real? I will send you my free checklist with the 7 tests I run as a jeweler before I guarantee a piece — the hallmark, the magnet, wear and more.
That is why in my workshop, Gold Shield, every .925 silver pieces ships with a verifiable certificate of authenticity.
Frequently asked questions
How much does .925 silver cost per gram in Mexico?
The price fluctuates with the market, but it typically ranges from MXN $12 to $15 per gram in 2026.
What does the 925 stamp signify?
It guarantees the piece contains 92.5% pure silver, the standard for sterling silver worldwide.
Is .925 silver the best choice compared to gold or moissanite?
.925 silver offers affordability and a classic look, but gold provides higher durability and moissanite offers greater brilliance; the best choice aligns with personal style and budget.
Why does .925 silver tarnish and how can I stop it?
Tarnish results from sulfur reacting with copper; store jewelry in airtight bags, keep it dry, and clean regularly with a silver polish.
Where can I buy reliable .925 silver in Mexico?
Buy from certified workshops that stamp their pieces; Gold Shield, founded by me in 2018, guarantees authenticity for every .925 item.
How can I tell if .925 silver is genuine?
Check for the 925 hallmark, perform a magnet test, and optionally use a nitric‑acid test; genuine .925 will not be magnetic and will not react to acid.
Is .925 silver durable and how long will a piece last?
When cared for, .925 silver jewelry can last generations, though it may develop a patina that can be polished away.
Is .925 silver hypoallergenic?
Generally yes; its copper alloy is low‑grade, making it safe for most skin types.
What does "925 Italy" mean?
It indicates Italian‑made sterling silver meeting the 92.5% purity standard.
How can I verify a .925 silver chain?
Inspect the clasp and links for the 925 stamp, test with a magnet, and compare weight to a known genuine piece.
How long does a .925 silver chain last and how should I maintain it?
With routine cleaning, proper storage, and occasional polishing, a chain can remain beautiful for decades.
What is the best home method to clean .925 silver?
Mix warm water with a few drops of mild dish soap, soak briefly, then gently rub with a soft cloth; for heavy tarnish, a baking‑soda paste works well.