What does 925 NH mean?

A ring that has 925 NH stamped inside of it is made of sterling silver. This also means that the ring is made up of 92.5% silver.

What does HN mean on jewelry?

925 stands for Sterling Silver and HN stands for Heng Ngai who is a jewelry maker and designer in Hong Kong.

Does 925 sterling silver oxidize?

The answer is – Yes, it can. Sterling silver is made up of 92.5 percent silver and 7.5 percent of other metals that form an alloy. Some of those other metals, primarily copper, can cause sterling silver to tarnish over time when they interact with moisture that’s in the air.

What does AMG 925 mean on jewelry?

These rings have “925” stamped on them, meaning that they are not made of solid gold. 925 is a standard sign used to mark sterling silver, and the meaning of the stamp is that the silver content in the piece is 92.5% (i.e., the remaining 7.5% is comprised of other elements).

Does white gold have 925 on it?

Sterling silver is 92.5% pure silver and 7.5% an alloy, commonly copper. You can tell sterling silver and white gold apart by searching for the hidden 925 on the jewelry piece, indicating the sterling silver composition. White gold is also often coated with a rhodium plating to aid in its preservation.

Where are the trademarks on a diamond ring?

If you buy a trademarked piece of jewelry, I’m certain it will contain a trademark inside the ring. Trademarks are like the LEO diamond or the Hearts Of Fire diamond (HOF). If you buy a special cut of diamond, or a trademarked name, look for the stamp, it’ll be there.

How to identify jewelry makers marks and trademarks?

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What do jewelry makers marks in vine jewelry mean?

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How are maker’s marks assigned to registered Goldsmiths?

In some countries, Italy for instance, official maker’s marks are assigned to registered goldsmiths and their use overseen by a body like the Chamber of Commerce. Sometimes a goldsmith’s maker’s marks evolve over time and knowing which mark was used when helps the jewelry historian or appraiser accurately dating an item.