What "Certified Authentic" and Hallmarked Actually Mean on a Piece of Jewelry
Every piece on MIRNE carries a small badge that says "Certified Authentic." It sits next to two others - 30-Day Returns, Secure Checkout - easy to scroll past without a second thought.
But it's worth a second thought, because "certified authentic" isn't a phrase with one fixed meaning in jewelry. Depending on the brand, it can mean anything from "independently assayed by a government office" to "we said so." We'd rather you know exactly which one it means here, so this is the specifics behind the badge, not just the badge.
What "hallmarked" actually means
A hallmark, strictly speaking, is a mark applied by an independent assay office after they've physically tested a piece and confirmed its metal purity - the system the UK, for example, has run since the 1300s. Most jewelry sold online today, MIRNE included, doesn't go through that formal assay process. What it has instead is a manufacturer's purity stamp: a small "925" (or similar) mark stamped directly into the metal, certifying the composition the maker used.
That distinction matters, and it's one a lot of jewelry marketing glosses over. So to be precise about what we mean: when we say a piece is hallmarked, we mean it carries a stamped purity mark - 925 for sterling silver pieces, the relevant mark for gold-plated pieces - not that it has passed through a third-party assay office. Both are legitimate; they're just not the same thing, and you deserve to know which one you're getting.
What the 925 stamp itself tells you: sterling silver is never 100% pure silver - pure silver is too soft to hold its shape in daily wear. "925" means 92.5% pure silver, alloyed with 7.5% other metal (almost always copper) for strength. It's the same standard used industry-wide, so it's a genuinely useful thing to check for, on any brand's jewelry, not just ours. If a piece calls itself sterling silver but carries no stamp anywhere, that's worth asking about.
What "hypoallergenic" and "nickel-free" really mean (and don't)
Here's the part most jewelry brands don't say out loud: in the US, "hypoallergenic" and "nickel-free" aren't regulated terms. There's no government standard a brand has to meet to use them, which means the words alone don't guarantee much. A common industry pattern is a nickel-free coating over a base metal that still contains nickel; once the plating wears down, even slightly, the nickel underneath can trigger the exact reaction the label promised to prevent.
That's not a MIRNE-specific problem, it's an industry-wide labeling gap, and it's exactly why the claim is worth explaining rather than just stating. Our pieces are built from 925 sterling silver and 18K gold-plated bases rather than mixed base-metal alloys, and every item is tested before it ships - pieces that don't hold up to daily wear don't go out. What we're not going to do is claim a specific third-party nickel-testing certification unless that's actually what backs a given piece, and we're working on making that distinction clearer badge-by-badge rather than leaving it as one catch-all "certified" label.
If you have a known nickel allergy, the most reliable move regardless of brand is the same one dermatologists suggest: patch-test a new piece against your skin for a day before wearing it steadily.
Sourcing: what's actually behind "responsibly sourced"
The other half of the badge is sourcing, and here's what that specifically means for MIRNE: conflict-free stones, with certification available on request, and metals from suppliers we've vetted directly rather than bought anonymously through a marketplace. Some pieces use recycled metal. Packaging across every order is carbon-neutral. Read more about our approach in The Mirne Way.
How to check your own piece
Look at the inside of a ring band, the back of a pendant, or the clasp of a bracelet or necklace - that's typically where a purity stamp sits. On sterling silver MIRNE pieces, that's the 925 mark described above. If you ever can't find it, or want more detail on a specific piece's materials than the product page gives you, that's a fair thing to ask before you buy, not after.
For day-to-day upkeep once a piece is yours - what actually keeps tarnish-resistant and waterproof jewelry looking new - see the Care tab on any product page. Browse Rings, Necklaces, Earrings, or Bracelets knowing exactly what's behind the badge on each one.
