Cartier · Authentication
Juste un Clou Bracelet: real vs fake
The Juste un Clou is Cartier’s nail bracelet, and its whole point is realistic geometry: the head, the tapering point, and the exact bend. Replicas almost always simplify the nail shape and botch the engraving and hallmarks. Photograph both ends and the inner face in LegitCheck AI for a read on the metal and profile.
What to check on the Juste un Clou Bracelet
Model-specific zones – on top of the brand-level signs.
Realistic nail head
One end is shaped as a true nail head, with a distinct faceted top and a clean transition into the body. On the original the head is three-dimensional and precisely modelled, not a flat disc. A simplified or blurry head is a replica tell.
Tapering point
The opposite end tapers smoothly to a point, echoing a sharpened nail with an even symmetrical taper. A blunt, crooked, or abruptly cut-off tip gives away a fake.
Precise arc of the bend
The body curves in a smooth even arc, with no kinks or flat sections. The original holds a perfectly consistent curvature; an uneven or angular bend is typical of replicas.
Engraving and gold mark
The body carries “Cartier”, a serial number, and the 18k mark: “750” and/or “18K” (both are legitimate, and US-market pieces more often carry “18K”), alongside assay and maker’s hallmarks. The engraving is deep, even, and legible; thin, shallow engraving or a completely missing gold mark puts the metal in doubt.
Weight and finish
Solid 18k gold gives real heft (a hands-on check, not a photo one), and the surface is evenly polished along its full length – allowing for age and service polishing. A light, hollow body or patchy shine are warning signs.
Where to inspect
The key zones to photograph and check on this type of item – a schematic, not a product photo.
- 1Hallmark and purity
- 2Engraving
- 3Stone and setting
- 4Prongs and finish
- 5Band profile
The difference is in the details – drag the slider
Typical differences in workmanship: stitching consistency, edge finishing, detail quality. Left – factory quality, right – common replica flaws.
Replica 
Authentic Photo angles for the check
- 1 Overall view
- 2 Logo / tag
- 3 Details & stitching
- 4 Material
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FAQ
What should I check first on a Juste un Clou?
The nail geometry: the three-dimensional faceted head, the smoothly tapering point, and the even arc of the bend. Replicas usually simplify these three elements, flattening the head and blunting the tip.
Where do I look for the engraving and hallmark?
On the body near the head or on the inner face: “Cartier”, a serial number, and the gold mark (“750” and/or “18K”). There is no public Cartier serial database, so a number cannot be “decoded” – judge the quality and depth of the engraving instead.
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