From the English word 'gem,' derived from Latin 'gemma' meaning 'precious stone' or 'bud.'
Gem derives from the Latin "gemma," meaning a precious stone, a jewel, or — in botanical Latin — a bud or growing point on a plant. The word traveled into Old French as "gemme" and into Middle English with its glittering cargo of associations intact. As a given name, Gem has functioned historically as both a standalone choice and as a nickname for Gemma, which enjoyed sustained use in medieval Italy and England and experienced a major revival in the late twentieth century, particularly in the United Kingdom.
The standalone name Gem carries a compressed intensity that Gemma lacks — it is a jewel without the ornamental suffix, direct and sparkling. In Victorian England, parents with a taste for word-names occasionally chose Gem alongside Pearl, Ruby, and Opal as part of a broader enthusiasm for names drawn from the natural world and its treasures. The name also appears in nineteenth-century American records in communities that favored short, strong names with obvious positive meanings.
In popular culture, the animated series "Jem and the Holograms" (1985) gave the name a campy, glamorous second life, though it spelled the title character's name differently. Contemporary usage of Gem sits at an interesting intersection of the minimalist naming trend — parents choosing single-syllable names of transparent meaning like Wren, Fern, and Ash — and the gemstone name tradition that has made Ruby and Pearl mainstream once more. Gem is perhaps the most literally luminous of the gemstone names, a single syllable that contains an entire category of beauty.