Authenticating luxury jewelry requires a trained eye for hallmarks, metalwork quality, stone setting, and brand-specific details that counterfeiters consistently get wrong. Our jewelry authentication guides cover Cartier Love bracelets and Trinity rings, Tiffany and Co. sterling and gold pieces, Van Cleef and Arpels Alhambra necklaces, and more. We walk through the exact markers — from hallmark placement and font consistency to clasp mechanics and weight — that experts use to separate genuine pieces from high-quality fakes.
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28 guides — updated regularly by our experts
Cartier does not use one serial system. Where the number sits on watches, jewelry, lighters, leather goods and eyewear, what the formats look like, and why a correct serial proves less than people think.
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Gucci silver and gold jewelry is judged by its stamps. "S925" beside no lozenge, "S.Steel" or "Stainless Steel" inside a bangle, and "Madeinitaly" run together all showed up on fakes in our archive and on no genuine piece. Here is how to read them, and what a clean stamp does not prove.
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How we check Chrome Hearts pendants, chains and bracelets: stamps, clasps, split rings, links, weight and 22k gold, and why a clean .925 stamp proves little.
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On a Hermès Clic Clac or Clic H bracelet the enamel, the H clasp and often the box are copied well. What gives fakes away is the small stamp on the underside of the clasp: the marks beside HERMÈS, and a PARIS line that genuine clasps do not carry.
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The Tiffany 1837 rings, bangles, cuffs and circle pendants all carry the same three stamps. What the genuine marks look like up close, and why a perfect stamp set no longer proves anything.
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Fake Return to Tiffany pieces copy every marking: the 925 on the bail, the back stamp, even a registration number. What gives them away is a mark that contradicts the metal, and lettering Tiffany would never strike.
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Most fake Louis Vuitton bangles give themselves away in a few millimetres of engraving: a copied hinge code, a bare "LOUIS VUITTON" with no ® or PARIS, or "MADEINITALY" run together. Here is what a large set of fake and genuine orders showed us.
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Chanel pearl necklaces, crystal pieces and brooches are faked with the right stamp format and even a plausible date code. What still gives them away in our archive is how the plaque is lettered and what the back of a set piece looks like.
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Chrome Hearts rings live and die on the interior stamp, the cross/dagger motif casting, and the blackletter engraving. Here's what a verified-authentic ring actually looks like, and a note on why no single mark always calls a fake.
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Open Heart, Bean, and Teardrop are the three Elsa Peretti designs with enough resale volume to fake at scale. The chain gauge on an Open Heart necklace is the one check that ends most inspections outright.
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The interlocking "CD" oval is Dior's most-copied modern jewelry motif, showing up as a bracelet, necklace, earring, and cuff charm alike. The engraving on the clasp bar is the check that catches most fakes outright.
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Chanel's CC earrings are decided by the casting of the interlocking C's and the hallmark tag on the back — but a correct-format stamp alone proves nothing. The engraving depth and the metal finish are what settle it.
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Chrome Hearts is one of the most counterfeited names in jewelry and streetwear. The silver weight and hallmarks, the casting detail, the fonts, and the leather work are where fakes break.
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The David Yurman Cable bracelet is one of the most counterfeited pieces of American fine jewelry. The cable twist, the metal and hallmarks, the cap detail, and the stones are the decisive checks.
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The orb pendant is one of the most counterfeited jewellery pieces sold online. The fakes get the silhouette close and the details — the Saturn ring, the engraving, the plating — consistently wrong.
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De Beers diamond jewelry sells at a premium tied to sourcing and craftsmanship claims. Hallmarks, certification, and construction checks for the DB Classic and Talisman lines.
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Swarovski's precision-cut crystal is an easy target for cheap knockoffs sold as genuine. Crystal quality, hallmarks, and packaging checks.
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Qeelin's Wulu and Bo Bo pieces have a strong resale market across Asia and increasingly the West. This guide covers the specific construction and hallmark checks for authenticating Qeelin jewelry.
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Pomellato's Nudo ring and coloured-stone pieces are among the most resold Italian fine jewelry. Hallmarks, stone-setting quality, and the specific Nudo checks.
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With Mikimoto a fake isn't just a wrong logo — it can be a lower-grade pearl sold at a Mikimoto price. Pearl evaluation, hallmarks, and documentation checks.
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Graff sits at the top of fine-jewelry pricing, built on exceptional stones. Certification, setting craftsmanship, and hallmark checks before a high-value purchase.
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Check hallmarks, logo engraving, weight, and hardware to tell a real B.zero1 ring or Serpenti bracelet from a fake — the tells counterfeit Bvlgari still misses.
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APM Monaco's price point makes it one of the most-faked jewelry brands. Enamel quality, clasp engraving, and rhodium finish are the key authentication tells.
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The Cartier Love bracelet is one of the most faked luxury jewelry pieces there is. Hallmarks, weight, screw profile, and engraved font — every check an expert runs.
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Tiffany & Co. is among the most faked fine jewelry there is. Every check from the clasp and chain construction to the Return to Tiffany tag, ranked by what actually proves something.
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The VCA Alhambra is one of the most widely faked fine jewelry pieces. Clover-motif symmetry, hallmarks, milgrain border, and chain construction — every check.
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Hermès rings — the Collier de Chien, Kelly, and Chaine d'Ancre — carry hallmarks and finish standards fakes consistently get wrong. Here's the complete guide.
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The B.zero1 is Bvlgari's most counterfeited ring. Fakes nail the spiral silhouette but fail on the engraving, hallmarks, and gold weight. Here's how to check.
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