Contrast in Sterling Silver 925: The Guarantee Seal Few People Know How to Read
When you buy a silver jewel, there's a small detail that almost no one notices at first glance: an engraved mark, usually inside the band of a ring, on the back of an earring, or near the clasp of a necklace. This mark is called a hallmark and is, in practice, proof that the piece is indeed 925 silver and not just any alloy hidden behind a good polish. At MÖHYA Signature®, we regularly receive questions about what this mark means and why it should factor into deciding where to buy. This article explains what a hallmark is, how to identify it on your jewel, and why this small detail says so much about the quality of a piece of jewelry.
What is a Hallmark in 925 Silver
A hallmark is the official mark that certifies the fineness of a precious metal, meaning the actual proportion of silver in the piece's alloy. When we talk about 925 silver, we are referring to an alloy with 92.5% pure silver and 7.5% other metals, usually copper, which give the piece the strength that pure silver, being too soft, would not have alone. In Portugal, this control is carried out by certifying entities associated with the Portuguese Mint (Casa da Moeda), which verify the composition of the alloy before applying the punch. It is this punch, laser-engraved or pressure-applied directly to the metal, that transforms a commercial claim into a verifiable fact.
This means that the hallmark is not a decorative detail or a collection mark. It is a legal guarantee, independent of the store or brand selling the piece, that the metal corresponds to what is advertised. You can learn more about the Portuguese Assay Office and our commitment to this certification.
Hallmark and Manufacturer's Mark: Two Marks, Different Functions
It is common to confuse the hallmark with the responsibility mark, also called the manufacturer's mark. They are different things and, ideally, both are found on the same piece. The hallmark confirms the fineness of the metal, usually through a symbol or combination of numbers defined by the certifying entity. The responsibility mark, on the other hand, identifies the company or jeweler who placed the piece on the market, allowing its origin to be traced in case of complaint or doubt.
When a jewel has both marks, it has a double layer of guarantee: you know the real fineness of the silver and you know who is responsible for that piece. Pieces without any mark are not necessarily fake, but they lack this form of verification, which requires more trust to be placed solely on the word of the seller.
Why This Seal Matters Even More When Buying Jewelry Online
When you buy a jewel in a physical store, you can hold the piece, feel its weight, and, in many cases, ask to see the mark up close. Online, this verification only happens after delivery, which makes the hallmark even more relevant as a prior guarantee. Much of the silver sold online is, in reality, brass or other alloys with a thin silver plating on top, without any punch because, simply, it would not pass that verification.
We have already written about other signs that help distinguish a quality piece before buying, such as weight, finish, and the sound silver makes to the touch. If you want to delve deeper into this more practical side, it's worth reading our article on the finish in jewelry and what it reveals about the quality of a jewel. The hallmark adds to these signs as the most objective proof of all, because it does not depend on personal perception.
How MÖHYA Signature® Guarantees This Standard in Every Piece
Every MÖHYA Signature® piece is crafted from verified 925 silver before being included in any collection. We do not work with alloys of uncertain composition or with silver plating over other base metals, precisely because the hallmark and customer trust go hand in hand. This care applies equally to rings, earrings, necklaces, and pendants, including pieces from more delicate collections, where it would be easier, and cheaper, to lighten the composition without it being noticeable to the naked eye.
In custom pieces, where an engraving occupies part of the inner space of the band or clasp, we ensure that the guarantee mark remains legible, without being sacrificed for the sake of customization. If you are thinking of a piece with your name, a date, or a phrase, our guide on personalized 925 silver jewelry explains how we combine both elements in a single piece.
Where to Look for the Hallmark on Your Jewelry
The exact location varies depending on the type of piece, but there are recurring patterns:
- On rings, the hallmark is usually engraved on the inner face of the band, sometimes next to the size number — as in the DUÄLIS Ring or the KNÖT Ring.
- On earrings, look on the back of the clasp or at the base of the hook, where the metal is thicker — as in the SÜNSET Earrings and the ÄLBA Earrings.
- On necklaces and bracelets, the mark often appears near the clasp or on the loop that connects it to the chain — as in the SÄND Necklace or the MÄTER Bracelet.
- On pendants, check the suspension loop or the back of the piece — as in the LÜX Pendant or the TÏLE Pendant.
Since the mark is small by nature, a pocket magnifying glass or even your phone camera's zoom can greatly help confirm the engraved symbols. When choosing between our 925 silver rings or the earrings from the current collection, you can always confirm this mark as soon as the piece arrives in your hands.
What to Do if You Cannot Find the Mark
Older, heavily used, or finer wire pieces may have the mark worn away by time, which does not necessarily mean poor quality. Still, if you are buying a new piece and cannot find any mark, it is worth asking the seller directly about the exact composition of the alloy. An absent mark on a piece advertised as 925 silver is, at the very least, a sign to ask for more information before finalizing the purchase.
If you have doubts about a piece already in your possession, a trusted jeweler can confirm the fineness through simple tests, without damaging the jewel. And if you are looking for new pieces where this doubt does not even arise, our necklaces and 925 silver pendants always come with this guarantee engraved on the piece itself.
A Guarantee That Comes From Within the Piece
The hallmark does not replace personal taste or care for design, but it gives you something that no photograph or description alone can offer: the certainty that the metal is what it claims to be. It is this commitment that guides every MÖHYA Signature® collection, from the initial design to the final finish of each ring, necklace, earring, or pendant.
All pieces are designed and handcrafted in our atelier in Porto. Free shipping in Portugal, shipping throughout Europe.