The Cartier Love necklace and the Cartier cross necklace are the most widely recognized and most actively traded Cartier necklace designs on the secondary market. The Love necklace benefits from the same cultural recognition as the Love bracelet — broad, multi-generational, and geographically consistent. The cross has occupied a specific cultural position since the 1990s that keeps demand steady. The Trinity necklace and Juste un Clou necklace are strong performers among buyers building across the respective collections.

The Love necklace carries the collection's defining screw-head motif into pendant form — a small oval of 18-karat gold with the same oval screws as the Love bracelet and ring, suspended on a fine gold chain with a lobster claw clasp. Available in yellow, white, and rose gold, with plain and diamond-set variants. It is frequently purchased alongside the Love bracelet and holds secondary market value with the same consistency as the other Love collection pieces. The pendant design was introduced after the bracelet established the Love motif as a cultural reference point.

Cartier necklace hallmarks are distributed across three components. On the clasp — the lobster claw fitting — the Cartier signature and 750 hallmark are engraved on the reverse face of the clasp body. On the pendant, the maker's mark, 750 hallmark, and a reference number appear on the reverse face, typically very small and requiring a loupe to read clearly. On the chain itself, there is no individual link hallmark; the chain's authenticity is verified through weight, construction, and finish assessment rather than a discrete stamp. Our team verifies all three components on every necklace before listing.

Cartier uses exclusively 18-karat gold — yellow, white, and rose — across its fine jewelry necklace line, confirmed by the 750 hallmark on every authentic piece. White gold necklaces are rhodium-plated for a bright finish. Platinum is used for some high jewelry and diamond necklace formats. Cartier does not produce fine jewelry necklaces in 14-karat gold or sterling silver.

The Cartier cross necklace is a plain or diamond-set cross pendant in 18-karat yellow, white, or rose gold, suspended on a fine Cartier chain. The design became culturally prominent in the 1990s through widespread celebrity association and has remained one of the house's most consistently produced and sought necklace formats. Available in multiple cross sizes and chain weights. On the secondary market, the plain yellow gold cross on a yellow gold trace chain in excellent condition is the purest and most liquid format, while fully diamond-set versions command significant premiums.

The Trinity necklace presents the house's three-interlocked-band concept — yellow, white, and rose 18-karat gold — in pendant or continuous necklace form. In pendant format, three bands are threaded onto a chain; in the necklace format, the three interlocked bands form the necklace itself. In continuous production since the Trinity concept was introduced in 1924, the necklace carries the same symbolic weight — friendship, fidelity, and love represented by the three gold colors — as the ring and bracelet. Pre-owned Trinity necklaces are among the most reliably available Cartier necklace formats on the secondary market.

Cartier necklaces hold value with consistency across the named collections, though with some format-specific variation. Love necklaces and cross necklaces benefit from the broadest buyer recognition and hold value most reliably. Trinity and Juste un Clou necklaces attract more collection-specific buyers and trade accordingly. High jewelry and diamond necklaces hold value primarily driven by stone quality, with the Cartier name adding a meaningful premium over unsigned equivalent pieces. Condition — chain integrity, clasp function, pendant finish, stone security — is the primary value driver across all formats.

Authentication requires examining three separate components. On the clasp, look for the Cartier signature and 750 hallmark engraved on the reverse face — this is one of the most commonly missing elements on non-genuine pieces. On the pendant, the maker's mark, 750 hallmark, and reference number appear on the reverse, typically under magnification. The chain itself should be assessed for weight, link construction, and finish consistent with Cartier's 18-karat gold chain production. Any piece where the clasp lacks correct engraving, where the pendant hallmarks are absent or poorly finished, or where the chain has been replaced is not the same piece as an intact original.

The Clash de Cartier collection, introduced in 2019, combines the house's most recognizable motifs — the Love screw, the Trinity bead border, Roman numerals from the watch tradition, and claw settings — in a single piece where these elements coexist in deliberate creative tension. In necklace form, Clash pieces present this vocabulary as a pendant or a chain design in 18-karat gold with diamond accents. The collection represents Cartier's approach to combining its own archive into something new rather than introducing a wholly original design vocabulary.

Pre-owned is typically the most rational point of entry for Cartier necklaces. The pieces are materially identical to boutique production — same 18-karat gold, same hallmarks, same construction — at secondary market pricing. The variable that matters is the authentication credibility of the source. Cartier necklace authentication requires assessing three separate components — clasp, pendant, and chain — and a source without specialist experience in this specific category may overlook elements that are critical to value. Every necklace we carry is assessed across all three components by our in-house team and backed by our authentication guarantee.

Cartier necklace chains can in some cases be adjusted in length — either by a Cartier boutique or by an experienced independent jeweler — but this should be disclosed in any subsequent sale as it affects original condition. Extending a chain typically requires adding a non-original link section, which will not carry Cartier hallmarks and will be visible on close inspection. We disclose any chain modification history on pieces in our inventory, as original chain length and construction are part of what we assess and represent in our authentication.

Yes. We purchase Cartier necklaces outright across all collections — Love, Trinity, Juste un Clou, cross, Panthère, Clash, and other Cartier necklace designs. Original box and papers are noted and factor into our offer. Clasp hallmarks, pendant condition, chain integrity, and stone security are all assessed. Contact us through our sell your jewelry page to get started.