"jeweller" = "joaillier" (masc.) or "joaillière" (fem.)
Maybe even preferably "bijoutier-joaillier" ("bijoutière-joaillière"), as "bijou" means "jewelry" and "joaillier" comes from a word that means only precious stones.
Jewelry derives from a French word 'joyau'.
bijoux.
HCT is the maker of the jewelry
Rossignol, the maker of great ski equipment, has the French word for "nightingale" as its name.
A macaron-maker in English and in French it's un macaronier, un créateur de macarons or un pâtissier-macaronier.
JPK is Celtic jewelry maker
No, he specialized in high fashion. However, he did use a jewelry maker by the name of Alan Gard.
It’s a maker’s stamp. Likely the initials of the silversmith that made your jewelry.
NG is not a Standard Jewelry Abbreviation and it's possibly a maker's mark particular to New Generation Jewelry of Los Angeles. Jewelry manufacturers and designers use makerโs marks or stamps that feature their logo, initials, trademarks, or company names to specify who made the jewelry. It provides proof that the jewelry item was made by the designer or jewelry maker and is considered "signed". These marks are registered by an Assay Office. 10K indicates the purity of the gold
CNA is the jewelry maker.
Davidson & Sons 1930's jewelry maker from New York City, NY.
TAL may be the mark for Tal Amos, Israeli and American trained jewelry maker.