What Is Hallmarking? Why It Matters for Jewelry
Jewelry Materials · July 31, 2026 · 4 min read
Hallmarking is an official certification that verifies the purity and fineness of precious metals used in jewelry. A hallmark is a set of official marks stamped into the metal by an approved body — proving that, for example, "925 silver" really is 92.5% silver. When you see a hallmark, you know the metal content is independently verified, not just claimed.
Why hallmarking matters
- Honesty — confirms the metal is what the seller says it is.
- Protection — buyers can verify gold and silver purity.
- Trust — independent testing, not just a label.
Common hallmarks you'll see
- 925 — sterling silver (92.5% pure silver). Used in our silver pearl fittings.
- 18K / 750 — 18-karat gold (75% pure gold). Used in our gold-plated options.
- 999 — fine gold (99.9% pure).
How hallmarking is done
Approved assay offices test a sample of the metal against official standards, then stamp the piece with a registered hallmark. Every hallmark is traceable to the testing body and the jeweler.
What to look for when buying online
Buying pearl jewelry online in Nepal? Check that metal fittings are hallmarked and the piece ships with a certificate of authenticity. At D Royals, all our pearl jewelry uses hallmarked metal and 925 silver fittings — so you know exactly what you're wearing.
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