English Vocabulary for Jewellery Designers: Gemstones, Metals and Craft Terms

Jewellery and jewelry are simply British and American spellings of the same word — they refer to identical objects and carry identical meaning. British English uses jewellery with two l's; American English uses jewelry with one l. In professional contexts, the choice of spelling signals your target market or your regional background. UK design schools, hallmarking documentation, and British retail will use jewellery. American trade fairs, GIA certification, and US retail contexts will use jewelry. Most international clients understand both spellings, so consistency within any single document is more important than choosing one over the other.

Carat has two completely different meanings in jewellery English. When applied to gemstones, one carat is a unit of weight equal to 0.2 grams — so a 2-carat diamond weighs 0.4 grams. When applied to gold, carat indicates purity: 24 carat gold is pure gold (99.9%), 18 carat gold is 75% gold alloyed with other metals, and 9 carat gold is 37.5% gold. The context always makes clear which meaning is intended — "a 2-carat diamond" refers to weight, while "18-carat gold" refers to purity. In American English, the purity sense is often spelled "karat" (abbreviated K or kt) to avoid confusion, while the weight sense remains "carat" (ct).

Repoussé (from French "pushed back") is a metalworking technique in which a design is created by pushing metal from the reverse side with punches and hammers, creating a raised relief on the front. It is pronounced roughly "reh-poo-SAY" in English, retaining the French stress on the final syllable. The word is always used as a noun or adjective: "a repoussé panel," "worked in repoussé." It is almost always paired with "chasing," which is the refinement of the design from the front surface. Together the techniques are often referred to as "chasing and repoussé." The term appears in English art history texts, craft courses, and museum descriptions.

Bespoke is a distinctly British English word meaning custom-made to the specifications of an individual client. In jewellery, a bespoke piece is designed and made uniquely for one customer, typically following a consultation process in which the client specifies metal, stones, design style, and budget. The word comes from "be-spoke" — meaning already spoken for. It contrasts with "ready-to-wear" or "off-the-shelf" jewellery available in a standard design. Bespoke is a premium term that signals high-quality, personalised craftsmanship. American English tends to use "custom" or "custom-made" for the same concept, though "bespoke" is increasingly used in American luxury contexts as well.

A hallmark is the set of official marks stamped on precious metal articles in the UK to certify their metal content. When describing a hallmark in English, you say "this piece bears a hallmark" or "the ring is fully hallmarked." A standard UK hallmark comprises four marks: the sponsor's mark (maker's initials in a shield shape), the metal and fineness mark (e.g. 925 for sterling silver, 750 for 18-carat gold), the assay office mark (an anchor for Birmingham, a lion passant for London), and optionally a date letter. Customers may ask "is this hallmarked?" meaning "is the metal quality officially certified?" Legally in the UK, describing an article as gold, silver, or platinum when selling it requires it to be hallmarked.

A necklace is any piece of jewellery worn around the neck, whether it is a chain, a string of beads, or a decorative collar. A pendant is a separate ornamental element that hangs from a chain or cord. So a pendant is part of a necklace — you might say "a diamond pendant on a gold chain" or "a pendant necklace." Other necklace vocabulary includes: choker (a short necklace worn close to the throat), lariat (a long necklace without a clasp), riviere (a necklace of a single row of gemstones), and bib necklace (a wide decorative necklace that sits on the chest like a bib). Understanding these distinctions is important when describing your work in product listings or to clients.

Pavé (from the French word for "paved" or "cobblestoned") describes a setting technique in which many small gemstones are set very closely together in a bed of metal, with tiny prongs or beads holding each stone. The effect resembles a surface paved with glittering stones, with almost no visible metal between them. In English, you say "a pavé diamond ring," "pavé-set emeralds," or "the band is pavé throughout." The accent on the é is typically retained in English writing, and the word is pronounced "pah-VAY." Micro-pavé refers to an even finer version using very small stones (typically under 1mm), requiring extreme precision to set.

Professional gemstone colour description in English uses three dimensions from colour science: hue (the basic colour: red, blue, green, etc.), tone (how light or dark the colour is: very light, light, medium, medium-dark, dark), and saturation (the intensity or vividness of the colour: greyish, slightly greyish, moderately strong, strong, vivid). For example, a fine sapphire might be described as "medium-dark, highly saturated, pure blue." Trade-specific colour names also exist: "pigeon's blood" red for the finest rubies, "royal blue" or "cornflower blue" for sapphires, and "vivid green" or "Colombian green" for emeralds. Learning this vocabulary helps you communicate value accurately with clients and wholesale suppliers.

Ethical sourcing describes the practice of obtaining materials — particularly gemstones and precious metals — through supply chains that avoid human rights abuses, environmental destruction, and conflict financing. Key vocabulary in this area includes: conflict-free diamonds (diamonds certified under the Kimberley Process as not used to finance rebel movements), Fairtrade gold (certified gold from small-scale mines paying fair wages), recycled metals (metal recovered and refined from existing jewellery or industrial sources), and traceability (the ability to document a material's origin through every step of the supply chain). Increasingly, customers ask about ethical sourcing, so designers need to discuss these concepts fluently in English.

Effective jewellery product descriptions in English combine technical accuracy with evocative aesthetic language. Technical elements include: materials (e.g. "18-carat yellow gold," "0.5ct round brilliant diamond, VS1 clarity, G colour"), dimensions (e.g. "band width 3mm," "pendant measures 18x12mm"), and fitting information (e.g. "standard UK ring size L, other sizes available to order"). Aesthetic language uses adjectives like lustrous, iridescent, delicate, sculptural, organic, geometric, asymmetric, and tactile. Storytelling phrases such as "handcrafted in our London studio," "inspired by architectural ironwork," or "each piece is unique" add brand personality and justify premium pricing.