Paris 18k Gold Jewelry: What the Atelier Checks Before Hand-Shaping Your Wire

Finding a Paris 18k gold jeweler able to hand-shape a custom piece, without resorting to industrial engraving, narrows the field fast. 750/1000 gold, also called 18k gold, is a solid gold wire made of 75% pure gold, quite different from gold-plated or gold-filled pieces. Since 2014, Atelier Paulin has hand-shaped this precious wire in its Paris atelier, for personalized jewelry bearing a word, a name, or an initial. This article details what sets 18k gold jewelry apart from the Maison's other materials, how the hand-shaping process works, the real turnaround times, and the options available right in Paris.

18k Gold: What the 750 Number Really Changes

750/1000 gold, better known as 18k gold, refers to a solid gold wire made of 75% pure gold. It's sometimes called "the gold of French tradition," as opposed to 585/1000 (14k), which falls into a different category. At Atelier Paulin, every 18k gold piece is hallmarked, certified, and hand-shaped by a Maison jewelry artisan in Paris.

Unlike 14k gold-filled, which comes only in yellow and rose, 18k gold is available in three tones: yellow, rose, and white. It's the only material at the Maison offered in white, making it a natural choice for a ring or necklace meant to match an existing white gold piece.

This 75% pure gold content has a direct effect on the shaping process: the wire is denser in hand and takes longer to cold-work, which partly explains why its shaping turnaround differs from that of silver or gold-filled wire. For a full breakdown of what this number really changes about a piece's durability and finish, the atelier has dedicated an entire article to the question.

This material standard comes with a traceability standard too: every 18k gold piece is identifiable by its hallmark, a guarantee that the wire used matches the stated fineness — a point French goldsmithing remains strict about.

Recognizing Hand-Shaped 750/1000 Gold Wire, Not Engraved

In a Paris jeweler working with 18k gold, two techniques coexist on the market: hand-shaping the precious wire, and engraving, where the motif is carved into a flat surface. A hand-shaped piece can be recognized first by touch: the relief of the letters or motif belongs to the wire itself, it wasn't added afterward onto an already-finished piece.

At Atelier Paulin, a single 750/1000 gold wire is bent and shaped until it forms the desired word or initial — never engraved onto a plate. The hand-shaped wire is then reinforced with laser micro-welding at tension points, a technique that strengthens the piece without freezing its movement. Finally comes work-hardening: this cold-working of the metal, carried out on the whole piece after shaping (never letter by letter), gives the wire its shape memory and resilience over time.

This full process is detailed step by step, with visual cues to tell a genuinely hand-shaped wire from an imitation, in the atelier's dedicated guide.

Note: lettering on hand-shaped words remains entirely lowercase, except for a capital "J" when it opens a word; the Capital and Capital Initial models, on the other hand, are uppercase by design. No accents or apostrophes are shaped, but a space can be added upon request.

Shaping and Delivery Times from the Paris Atelier

One question comes up often among customers looking for custom 18k gold jewelry: turnaround time. Two distinct timelines need to be separated. First, shaping at the atelier: for 18k gold, expect 2 to 5 business days, versus 1 to 3 business days for sterling silver 925 and gold-filled. This longer timeline comes from the density of the solid gold wire, which requires more cold-working time.

Next comes home delivery, shipping included: between 2 and 5 days, wherever the customer is located.

Paris offers two options the atelier provides nowhere else: coming in to have a piece personalized on-site, in about 30 minutes, or having it delivered by courier the same day. No mass-market jeweler offers this kind of real-time personalization, right in front of the customer.

This closeness between the atelier and its Paris customers also changes the nature of after-sales service: a piece can be adjusted, its personalization checked, without waiting for a round trip by mail. It's an advantage the atelier details further by comparing turnaround times at a Paris atelier against those of a typical mall jeweler.

Which 18k Gold Pieces Can Be Personalized at the Atelier

Not all of the Maison's 18k gold jewelry can be personalized, and it's worth clarifying before choosing a piece. Two personalization options coexist at Atelier Paulin: the hand-shaped word made to order, shaped letter by letter into the wire, and the initial, one or more letters referring to one or more first names.

Among the iconic pieces available in 18k gold, the Original Personalized Bracelet remains the piece that started it all at the atelier. The Mantra Original Necklace can hold a short phrase or up to five first names, while the Richelieu Duo Necklace is deliberately limited to two first names for a cleaner look. On the ring side, three personalizable models exist: the Original Personalized Ring (up to 5 letters), the Original Initial Ring, and the Capital Initial Ring, available from size 48 to 62.

On the color side, 18k gold stands out by offering white in addition to yellow and rose, an option 14k gold-filled doesn't have. For a piece meant to match existing white gold jewelry, this is often the deciding factor.

A symbol can be hand-shaped upon request; simply discuss it with the atelier before ordering, in-store or in writing.

Caring for an 18k Gold Piece, and Warranty

18k gold requires no special care: a rinse with lukewarm water and mild soap, followed by drying with a soft cloth, is enough to preserve its shine over time. It's a stable material that doesn't require the precautions specific to sterling silver 925 (which can naturally and reversibly tarnish) or to gold-filled (to be removed during intense physical activity to preserve the delicacy of the hand-shaped wire).

Every Atelier Paulin piece, regardless of material, is covered by a one-year warranty from the date of purchase, and presented in a jewelry box.

One point worth knowing before ordering: a non-personalized piece is eligible for a refund or exchange, but a piece hand-shaped to order, with the word or name chosen by the customer, can neither be exchanged nor refunded, since it was made specifically for her. This is the natural counterpart of a wire hand-shaped for one unique word, rather than a piece from a series.

This distinction is worth double-checking before placing an order, especially for a gift, where the initial or name chosen must be confirmed with certainty before shaping begins.