Cartier Love Bracelet Real vs Fake: Screws, Weight, Marks

Cartier Love bracelet real vs fake comes down to two numbers: a band 6.1 mm wide and a classic 18K bangle weighing 30 to 35 g. Copies miss both.

Classic, Small and Paved Love: What Changes and What Does Not

Cartier builds the Love bracelet in four shapes, and every measurement above moves with the shape. The classic model is 6.1 mm wide and closes with two functional screws. The small model is 3.65 mm wide and weighs a little over half as much. A single-screw line closes with one functional screw and a hinge, and Cartier files it on its own site under a hinge path. Paved versions carry 165 to 204 brilliant-cut diamonds and start above 50 g.

Cartier publishes its specification at one size and says plainly that it moves. The Cartier listing for the yellow gold classic model gives the width as 6.1 mm, the metal as yellow gold 750/1000, and warns that dimensions vary depending on the size of the creation ordered. An older reference, B6032517, is published at 6.2 mm for size 17. Read width as a band rather than a constant, and the small rounding differences between dealer listings stop looking like contradictions.

What does not change is the closure principle. Every Love bracelet in every model opens with a tool, and none of them opens with a clasp. Cartier has described the design that way since the bracelet appeared in New York in 1969. Sotheby’s records the designer as Aldo Cipullo, who took the screw motif from engineering rather than from jewellery. A bracelet that snaps shut is not a Love bracelet with a worn screw. It is a different object wearing the pattern.

The Interior Stamp: Cartier, 750, a Size and Six Characters

The inner curve carries four things, and a copy usually gets three of them right. Genuine bracelets are engraved with the Cartier signature, a fineness mark reading 750 or Au750, the size number, and a six-character serial, often preceded by a copyright symbol. Dealer listings print the whole string: one size 19 white gold bracelet is described as reading “© Cartier 19 OQW*** AU750”, and a size 16 small model as “© Cartier 16 (Serial#) AU750”. A 1993 bracelet sold with the year in the string as well, which is unusual and not the modern pattern.

Fineness is the part with a legal meaning behind it. The Assay Office London defines millesimal fineness marks as precious metal content expressed in parts per thousand, with 750 standing for 18 carat, and French customs states the same figure as 75 percent pure gold. That is why a 585 or 925 mark ends the check immediately. It is not a Cartier variant. It is a different alloy with a different density, and the scale confirms it in ten seconds. The broader fineness logic is the same one that governs any unbranded piece, and the gold testing thresholds apply to a Love bracelet exactly as they apply to a plain chain.

Serial length is the single most useful character in the string. Every verbatim serial found in auction and dealer records runs to six characters in one of three arrangements: three letters and three digits, two letters and four digits, or one letter and five digits. Sotheby’s listed a 2020 pink gold size 17 bracelet numbered CHP560, which is the three-and-three pattern. A seven-character serial claim circulates online and no verbatim example supports it. Cartier publishes no era-to-format table, runs no public lookup, and the reasons for that sit in the Cartier serial number check guide.

One asymmetry confuses buyers and it is normal. Owners of genuine bracelets report the full mark set on one half and only the fineness on the other, with both halves fully marked on later pieces. A bracelet marked on one side is not half a fake.

Screws, Screwdriver and the 2011 Closure Change

Two screws turn on a classic Love bracelet, and no more than two. Cartier describes the classic model as having two functional screws placed on either side of the bracelet and confirms that the bracelet comes with a screwdriver. Every other screw motif along the band is cast into the metal and does nothing. A copy that lets four or six heads spin has reproduced the look of the pattern without the function behind it.

The mechanism changed once in a way that helps date a piece. 1stDibs dates the redesign to 2011, reporting that Cartier reworked the opening mechanism so the screw stays attached to the bracelet when it opens, because owners kept losing the older fully removable screws. Cartier itself publishes no page describing the change, so this belongs to trade knowledge rather than brand documentation, and it should be weighed that way. A bracelet whose screws drop free is consistent with an earlier piece and is not evidence against it.

Screw head geometry is where photographs help and numbers do not exist. No source publishes a slot width or a head diameter for the Love screw. What authenticators describe consistently is a circular head sitting flush with the band, carrying one long, cleanly cut slot that runs the width of the head. Copies tend to produce a short, thick, boxy slot and a head that stands slightly proud of the surface. Flatness of the outer edges matters for the same reason: the genuine band is cut square, and the cheap casting route rounds every edge it touches.

Polishing complicates all of this, and it deserves saying out loud. Cartier’s own jewellery care service includes polishing, reshaping and component replacement, and Cartier recommends no more than three polishing services in the lifetime of a creation. Owners report that polishing softens screw definition and can lighten engravings. So a bracelet with slightly soft marks may be a genuine piece that has been serviced three times, and crisp marks alone are not proof of anything either. Weight and width survive polishing far better than engraving does.

Weight and Density: Why Plated Copies Come In Light

Metal is the test a copy cannot argue with. Gold at 750 fineness has a density near 15.2 g per cubic centimetre. Brass sits near 8.5 and sterling silver near 10.5. A classic Love bracelet contains roughly 2.1 cubic centimetres of metal, so the same object in plated brass weighs about 17 g where the genuine one weighs 32 g. That gap is not subtle, and it does not need a laboratory.

Run the checks in this order, because each one costs more effort than the last:

1. Weigh the closed bracelet on a 0.01 g scale and compare against the stamped size.
2. Measure the band width at three points with callipers.
3. Read the interior under a loupe and count the serial characters.
4. Fit the screwdriver and confirm that exactly two heads turn.
5. Run the water displacement test if the weight passed but something else did not.

Here is the weight evidence, drawn from dealer and auction listings rather than from a single blog figure.

Two limits belong with that table. First, the band only holds for plain gold. A four-diamond classic weighed 28.4 g at size 16, below the plain gold floor, because the stone seats cut metal away. A fully paved size 18 weighed 50.8 g. Compare like with like or the scale will mislead. Second, a copy cast in solid 18K gold will pass every weight and density check on this page, which is exactly what the expensive tier of counterfeit does. For those pieces the interior stamp, the screw function and the provenance carry the decision. If the bracelet is stone-set, the diamond tests become the next filter rather than the last one.

What Customs Seizures Reveal About Fake Love Bracelets

Enforcement records describe the counterfeit Love bracelet better than any opinion piece does, and they are public. In April 2021, CBP officers in Cincinnati seized 242 counterfeit Cartier Love bracelets with a genuine retail value of 3,583,200 dollars, shipped from China to an address in Indiana on a package declared at 59 dollars. The detail that matters for authentication is what the bracelets did not carry: no visible Cartier wordmark at all. They infringed the protected shape.

Two more shipments show the scale. In January 2021 CBP officers in Cincinnati and Louisville seized 805 counterfeit Cartier bracelets and rings in one day, worth 8.72 million dollars at genuine prices, all bound for a single Florida residence. In September 2022, National Jeweler reported a seizure of more than 700 counterfeit Love bracelets at the Port of Cincinnati. Officers described the pieces as lacking fine details, built from cheap material and set with fake stones, which is the customs description of everything the scale and the callipers catch.

Price is not the safety net people assume. In June 2022, Cartier and Amazon jointly sued an influencer and eight marketplace sellers over counterfeit Love jewellery. National Jeweler reported one fake listed at 29.99 dollars as a “Women’s Fashion Classic Screw Love Titanium Bracelet”, with the brand name stripped out to dodge detection. At the other end, Richemont sued a New York seller in July 2025 over superfakes allegedly priced between 2,800 and 9,000 dollars, which is authentic territory. The case ended in a consent judgment and 205,000 dollars. A 30 dollar bracelet is obviously wrong. A 6,000 dollar bracelet is not obviously right. The same lawsuit covered Alhambra copies, and the Van Cleef measurements come from the same counterfeit supply chain.

CBP’s consumer campaign on counterfeit goods reports that more than 90 percent of counterfeit seizures arrive through international e-commerce parcels. That is the channel, and it is the reason a photograph of a bracelet in a Cartier box proves nothing about the bracelet.

Where To Get Your Cartier Love Bracelet Authenticated

Cartier is the one place that will not give you an answer. Nothing on any Cartier service page offers authentication to the public, and there is no public serial-number lookup. Cartier’s service request page points serialled creations to Enquirus, which is a lost and stolen registry and makes no authentication claim. The international guarantee applies only to creations bought from a Cartier boutique, e-boutique or official retailer, so it says nothing about a piece bought elsewhere. 1stDibs states flatly that Cartier no longer authenticates these jewels because counterfeits became so common, and other trade sources say the same. Cartier has not published that position itself, so treat it as the trade’s reading rather than a brand statement.

That leaves three realistic routes. An independent gemologist or a jeweller with an XRF analyser will confirm the alloy in minutes and charges for the visit rather than for the verdict. Authenticated resale platforms inspect a piece as part of a transaction. FASHIONPHILE states a multi-step authentication process covering stamping, engravings, hardware and serial numbers, backed by a money-back authenticity guarantee. The RealReal describes gemologists and horologists issuing valuation certificates on fine jewellery. Both are useful and neither is neutral, because both want the consignment.

Legitly sits before all of this rather than in place of it. It pre-screens a bracelet from photographs, reads the interior string and the screw heads, and flags a serial of the wrong length or a closure that does not match the model. A photograph cannot weigh a bracelet, and no photo service should tell you it can.

Verdict: Weight and Width Decide, Not the Box

Two numbers out of band means walk away. A classic Love bracelet at size 17 weighs about 32 g and measures 6.1 mm wide, and a copy in plated brass fails both by a margin a kitchen scale resolves. If the weight is right and the width is right, move to the interior: six serial characters, a 750 or Au750 mark, one size number, and exactly two screws that turn.

If all of that passes and the price still looks generous, the remaining risk is the solid gold copy, and that one is settled by an analyser and a receipt rather than by a ruler. Boxes, screwdrivers, pouches and certificates are the cheapest part of a counterfeit package to reproduce, which is why they come last in this order. Ask for the original sales receipt with the serial on it, and treat its absence as a price negotiation rather than as a verdict.

The order of operations holds across the Cartier guides here and across the wider jewellery checks: metal first, marks second, paperwork last.