From Italian/Latin gemma meaning "gem" or "precious stone."
Gemma comes from the Latin gemma, meaning “gem,” “jewel,” or sometimes “bud.” It has been especially well established in Italian, where it has long functioned as a graceful feminine given name. The word’s double sense is part of its charm: it suggests both something precious and something newly opening, a jewel and a blossom.
That compact richness gave Gemma enduring appeal in Catholic Europe and later in the English-speaking world. One of the name’s most important historical bearers is Saint Gemma Galgani, an Italian mystic of the late 19th century whose piety and visions brought the name special prominence in Catholic communities. In literature and modern culture, Gemma has been used often enough to feel familiar, but not so often that it loses its sparkle.
English speakers sometimes encounter it first as distinctly Italian, which lends it a touch of continental elegance. In Britain, it became especially popular in the late 20th century, helped by celebrities and media figures, and from there it spread more widely. Gemma’s perception has shifted very little in one sense: it has almost always sounded bright, feminine, and refined.
What has changed is its social reach. Once more regionally tied and overtly Catholic in association, it is now embraced as a stylish international name. It feels polished without being ornate and simple without being plain. Because its meaning is so transparent, Gemma carries an immediate image of value and brightness, making it one of those rare names that sounds both classic and freshly gleaming.