Cartier — Jewelry Identification Guide

Founded in Paris in 1847 by Louis-Francois Cartier, the Maison Cartier rose to become the jeweler of kings and the king of jewelers. The house pioneered the modern wristwatch, created some of history's most celebrated jewelry designs including the Love bracelet and the Panthere collection, and served virtually every royal court in Europe. Cartier remains one of the most prestigious and recognizable luxury jewelry brands worldwide.

Cartier stamps their jewelry with the word 'Cartier' in a distinctive cursive or block script, depending on the era and collection. Modern pieces typically feature a clean serif font. The stamp also includes a serial number unique to the piece, a metal purity mark (e.g., '750' for 18K gold or '950' for platinum), and often a country of manufacture indicator such as a French eagle head or Swiss hallmark.

Vintage Cartier pieces may bear additional marks including workshop stamps, inventory numbers, and assay office marks from Paris, London, or New York depending on which of Cartier's three historic ateliers produced the item. The London workshop used English hallmarks, while Paris pieces carry French state hallmarks. Each of these details helps authenticate and date the piece.

Authentic Cartier jewelry will always include the 'Cartier' name stamp, a unique serial number, and a metal purity hallmark. On gold pieces, look for '750' alongside the Cartier stamp. The serial number can be verified with Cartier directly or through their boutiques. The font of the Cartier stamp should be consistent and precisely engraved.

Cartier's craftsmanship is exceptionally refined. Bezels, clasps, and hinges should operate smoothly, and stone settings should be tight with no visible gaps. On the iconic Love bracelet, the screw motifs should be evenly spaced and the bracelet should come with its proprietary screwdriver. Any piece lacking a serial number or bearing a poorly executed stamp is very likely counterfeit.