Cartier Juste un Clou
Cartier Collection Encyclopedia / Juste un Clou
Cartier Collection Encyclopedia — Pillar Collection
Juste un Clou
Juste un Clou — French for "Just a Nail" — is a Cartier jewelry collection designed by Aldo Cipullo in 1971 at Cartier New York. The collection's defining piece is a bracelet shaped as a construction nail bent around the wrist, executed in 18-karat gold. Originally called the Nail bracelet, the design was discontinued after its initial run and relaunched in 2012 as Juste un Clou, coinciding with Cartier's 165th anniversary and a commemorative exhibition at the Cartier Mansion on Fifth Avenue. The collection is Cipullo's companion piece to the Love bracelet (1969) and is considered one of the most conceptually subversive fine jewelry designs of the twentieth century.
A construction nail bent around the wrist. Eighteen-karat gold. Aldo Cipullo's most irreverent idea, and one of the most quietly radical statements in twentieth-century jewelry design.
Key Facts
About the Collection
Cipullo's Second Idea — and His Most Subversive
Two years after the Love bracelet rewrote what fine jewelry could look like, Aldo Cipullo proposed something more radical. If the Love bracelet had been about permanence and ceremony — a piece that locked onto the wrist as a contract — the Nail bracelet was about irreverence. Where Love asked the wearer to commit, Juste un Clou simply asked them to look closer at what they thought they understood.
The design came from the same place as Love: Cipullo's habit of treating ordinary industrial objects as raw material. He and his brother Renato made regular trips to the Hippodrome hardware store on 45th Street in Manhattan, where Cipullo would handle and examine everything — nuts, bolts, screws, nails, brackets — with the same attention most jewelry designers reserved for cut stones. The nail was already a complete design. Cipullo's contribution was the act of execution: taking the nail's form, preserving its blunt tip and rounded head exactly, and bending it around the wrist in 18-karat gold.
The initial 1971 release sold to a small cult of New York collectors — the kind of people who could recognize what Cipullo was doing without needing it explained. But the bracelet's commercial reach was limited. By the mid-1970s, Cipullo had moved on to his own independent label, and Cartier quietly discontinued the Nail bracelet. For three and a half decades the design existed primarily in vintage form, traded among collectors and dealers who knew its significance.
The 2012 relaunch changed everything. To mark its 165th anniversary, Cartier brought the Nail back — renaming it Juste un Clou ("just a nail"), expanding it into a full collection of rings, bracelets, and eventually earrings and necklaces, and pairing the launch with a major retrospective exhibition that for the first time placed Cipullo's name back into public conversation. The 2012 Juste un Clou outperformed the original commercially by orders of magnitude. By 2017 the collection had expanded into earrings, cufflinks, necklaces, and tie pins. By 2022, Meghan Markle had been photographed wearing a Juste un Clou necklace, signaling the collection's arrival as a mainstream cultural reference.
Design Vocabulary
Four elements define every Juste un Clou piece. The combination produces a design that reads as a nail on first glance and as fine jewelry on second.
The Nail Form
The bracelet preserves the proportions of an actual construction nail — the blunt tapered tip, the cylindrical shaft, the rounded flat head with precise machined ridges. Cipullo's discipline was to change nothing about the nail's geometry. The only intervention was bending the shaft around the wrist. The piece's power comes from this exactness: it is not a stylized nail, not an interpretation of a nail. It is a nail.
The Concealed Clasp
The bracelet opens at the nail head, where a concealed clasp allows the wearer to put it on and take it off without tools. This is the principal mechanical difference from the Love bracelet, which requires its dedicated screwdriver. The Juste un Clou's removable closure was a deliberate design choice — the bracelet was meant to be casually worn rather than ceremonially given.
The Ridge Detail
Below the nail head, five precise ridges encircle the shaft on bracelets — the kind of ridging a flathead construction nail actually carries. Rings use four ridges. The ridge count is consistent across all production years and is one of the authentication checkpoints used by Cartier specialists. Counterfeits frequently fail on ridge count, ridge depth uniformity, or ridge spacing.
The Small & Large Models
Juste un Clou bracelets come in two principal profiles. The Small model (reference B6048717) has a narrower nail shaft and sits closer to the wrist — preferred for daily wear and stacking. The Large model (reference B6048617) has a thicker nail and more prominent head, with the bolder visual presence Cipullo originally specified in 1971. Both models exist in plain gold and diamond-set variants.
The Juste un Clou Collection — Pieces & Variants
Original 1971 Nail Bracelet
Cipullo's first execution — produced in limited quantities through the mid-1970s. Original pieces carry the "A. Cipullo" signature and the date 1971 inside the nail head, alongside Cartier markings. Vintage Nail bracelets are now among the most sought-after Cartier pieces on the secondary market; documented original-period examples carry significant premiums over current production.
2012 Relaunch — Small & Large Bracelets
The reintroduction split the design into two profiles. Small (B6048717): narrower, lighter, designed for daily wear. Large (B6048617): bolder, more substantial, closer to the original 1971 proportions. Both available in 18K yellow, white, and rose gold, in plain and diamond-set configurations.
Juste un Clou Rings
The nail-bent-around-the-finger format. Rings reduce the ridge count from five to four (a documented authentication checkpoint). Available in narrow and wider profiles, plain and diamond-set, across all three gold colors. Stacking with Love and Trinity rings is common.
Diamond-Set Variants
Diamonds appear in two primary configurations: pavé along the head and shoulders of the nail, or wrap-around full-shaft pavé on the bracelet. Diamond quality follows Cartier's standard specifications — F-G color, VVS-VS clarity. Diamond variants command premiums in the secondary market.
Earrings, Necklaces & Cufflinks (2017+)
The collection expanded into smaller-scale pieces in 2017. Earrings (studs and hoops) feature the nail-head motif. Necklaces suspend a small nail-form pendant on an 18K gold chain — the Meghan Markle 2022 piece is from this expansion. Cufflinks and tie pins use the nail form at executive scale.
High Jewelry Pieces
Cartier produces occasional high-jewelry Juste un Clou pieces — full-paved variants, colored-stone-set pieces, and limited editions. These are typically released in small numbers through Cartier's high jewelry channels and trade at the highest tier of the secondary market.
Cultural Context — The Bracelet That Made Cipullo's Reputation
For nearly forty years after Cipullo's death in 1984, his name was known only in specialist jewelry circles. The Love bracelet was famous; its designer was not. The 2012 Juste un Clou relaunch changed that, in large part because Cartier built the launch around a major retrospective exhibition at the Cartier Mansion on Fifth Avenue — "Cartier & Aldo Cipullo, New York City in the 70s" — that placed Cipullo's full body of work in front of the public for the first time in a generation. Approximately 40 pieces of his Cartier work were exhibited alongside archival drawings, articles, and scrapbooks. The exhibition ran from April 13 to May 8, 2012.
That moment initiated a broader reassessment. Vivienne Becker, the jewelry journalist who would later coauthor Cipullo: Making Jewelry Modern (Assouline, 2022) with Cipullo's brother Renato, has cited the 2012 exhibition as the turning point for Cipullo's posthumous recognition. By the late 2010s and early 2020s, Cipullo was understood not just as the designer of two famous bracelets but as the figure who fundamentally modernized fine jewelry — who transformed it from formal-occasion adornment into something that could be worn every day, by anyone, as part of who they were.
Juste un Clou's commercial trajectory since 2012 has been remarkable. The collection started as a single bracelet relaunch; by 2017 it had expanded into earrings, cufflinks, necklaces, and tie pins. The 2022 Meghan Markle moment — she wore a Juste un Clou necklace at a public event — pushed the collection further into mainstream cultural reference. Pre-owned Juste un Clou pieces, particularly diamond-set variants in yellow gold, now consistently appear at major auctions and command sustained premiums.
For collectors, the original 1971 Nail bracelets occupy a separate market entirely. These are recognized as historical objects — pieces from the moment Cipullo first proposed that a construction nail could be fine jewelry. Authentic 1971-period Nail bracelets with original "A. Cipullo 1971" markings inside the nail head are documented sale items at Sotheby's, Christie's, and Phillips, and trade at meaningful premiums over current production.
Authentication
How to Authenticate a Cartier Juste un Clou
Juste un Clou authentication has several collection-specific checkpoints. The "Cartier" signature and serial number are engraved inside the nail head or along the inner shaft, alongside the 750 hallmark for 18-karat gold. French-market pieces carry the eagle's head hallmark. Engraving should be crisp, fine, and uniform. Original 1971-period pieces carry the additional "A. Cipullo" signature with the date 1971 inside the nail head — a marker that confirms vintage origin.
Ridge detail is the collection's most reliable authentication checkpoint. Authentic bracelets carry exactly five precise machined ridges below the nail head. Authentic rings carry four ridges. The ridges should be uniformly deep, evenly spaced, and crisp at the edges. Counterfeits frequently fail on ridge count (six or seven rather than five), ridge depth uniformity, or ridge spacing. This is the fastest way to flag a suspect piece.
The clasp mechanism should operate smoothly. The nail-head clasp opens and closes with light pressure and a definite click — not stiff, not loose, not catching. The closure should sit flush when locked, with no visible gap. The 2012-and-later pieces use a refined clasp construction compared to the original 1971 production; the difference is documented and authenticators can date pieces by clasp behavior alone.
Reference numbers for current production are useful: B6048717 is the Small model bracelet, B6048617 is the Large model bracelet. A piece offered without a reference number, without a model size, or with a reference number inconsistent with its physical proportions warrants additional scrutiny.
For the complete Cartier authentication framework, see our Cartier Authentication Center.
The Pre-Owned Juste un Clou Market
Juste un Clou has one of the most striking secondary market trajectories in contemporary fine jewelry. Until 2012, the collection existed almost entirely as vintage 1971-period pieces, traded among specialist collectors at relatively modest premiums. The 2012 relaunch fundamentally restructured the market: new production created broad demand, vintage prices climbed in response, and by the late 2010s the collection had established itself as one of Cartier's most actively traded pillar collections.
Value within the Juste un Clou market is driven by several factors. Production era is the primary driver: original 1971-period A. Cipullo-signed pieces command the highest premiums, followed by early 2012 relaunch pieces with original full documentation, then current production. Metal type matters: yellow gold is the most recognized and most requested. Model size matters: both Small and Large have followings, with the Large model carrying a slight premium reflecting its proximity to the original 1971 proportions. Diamond content adds significant tiers, with full-paved bracelets and diamond rings sitting at the higher end of the market.
For collectors, an original 1971-period Nail bracelet with documented provenance, original A. Cipullo signature, and intact ridge detail is among the most desirable Cartier pieces on the secondary market. For buyers seeking current production, the Small and Large model bracelets in yellow, white, or rose gold are widely available and provide a clear entry point into Cipullo's design language.
Every Juste un Clou piece at Opulent Jewelers is individually authenticated before listing. Ridge count, clasp operation, signature engraving, serial number verification, and overall construction are verified on every piece.
Frequently Asked Questions
What is the Cartier Juste un Clou?
Juste un Clou — French for "Just a Nail" — is a Cartier jewelry collection designed by Aldo Cipullo in 1971 at Cartier New York. The collection's defining piece is a bracelet shaped as a construction nail bent around the wrist, executed in 18-karat gold. Originally called the Nail bracelet, the design was discontinued after its initial run and relaunched in 2012 as Juste un Clou.
Who designed the Juste un Clou?
Aldo Cipullo (1935–1984), the same Italian-born designer who created the Cartier Love bracelet in 1969. Cipullo joined Cartier New York in 1969 and stayed until 1974; the Nail bracelet was conceived in 1971, two years after the Love bracelet. Cipullo's design archive includes both bracelets, additional Cartier work, and his independent label founded in 1974.
When was Juste un Clou made?
The original Nail bracelet was introduced in 1971. The design was discontinued by the mid-1970s. Cartier relaunched the collection in 2012 with the new "Juste un Clou" name, coinciding with the maison's 165th anniversary and a commemorative exhibition at the Cartier Mansion on Fifth Avenue.
What does "Juste un Clou" mean?
"Juste un Clou" is French for "Just a Nail." The name was introduced with the 2012 relaunch; the original 1971 version was called the Nail bracelet. The new name preserves Cipullo's original design conceit — a construction nail rendered as fine jewelry — while signaling the relaunched collection as a distinct contemporary line.
What's the difference between Juste un Clou and the Cartier Love bracelet?
Both were designed by Aldo Cipullo at Cartier New York — Love in 1969, Juste un Clou in 1971. The Love bracelet requires a dedicated screwdriver to open and close, symbolizing locked-in commitment. The Juste un Clou opens at the nail head with a concealed clasp — no screwdriver required, more casual to wear. The Love bracelet is more globally recognized; Juste un Clou is considered the more conceptually subversive design.
How can I tell if a Juste un Clou is authentic?
Authentic Juste un Clou bracelets carry the "Cartier" signature, 750 hallmark, size, and serial number. The most reliable collection-specific checkpoint is the ridge count: exactly five precise machined ridges below the nail head on bracelets, four on rings. Original 1971-period pieces additionally carry the "A. Cipullo" signature and the date 1971 inside the nail head. Counterfeits commonly fail on ridge count, signature engraving quality, or clasp operation.
What sizes does the Juste un Clou come in?
The bracelet comes in two model sizes: Small (reference B6048717, narrower profile, lighter wear) and Large (reference B6048617, bolder profile, closer to original 1971 proportions). Both models are produced in 18K yellow gold, white gold, and rose gold, in plain and diamond-set configurations. Each model is available in multiple wrist sizes.
Does Opulent Jewelers carry Juste un Clou?
Yes. Authenticated pre-owned Juste un Clou bracelets, rings, earrings, and necklaces rotate through our inventory across all metals and stone configurations, including occasional original 1971-period A. Cipullo-signed pieces. Every piece is individually authenticated before listing and accompanied by our money-back authenticity guarantee. Current inventory is in our Juste un Clou bracelet collection and Juste un Clou rings collection.