jeweler vs gold-worker

jeweler and gold-worker both are nouns.

Word	Noun	Adjective	Verb	Adverb
jeweler	Yes	No	No	No
gold-worker	Yes	No	No	No

As nouns, gold-worker is a hyponym of jeweler; that is, gold-worker is a word with a more specific, narrower meaning than jeweler:

Other hyponyms of jeweler include goldsmith, goldworker, silver-worker, silversmith, silverworker.

jeweler (noun)	gold-worker (noun)
someone in the business of selling jewelry	an artisan who makes jewelry and other objects out of gold
someone who makes jewelry