People who make, sell, or repair jewelry and other items made of precious metals and gems.
From Old French 'jouel' (jewel), from Latin 'iocale' (plaything or trinket). The suffix '-er' denotes a person, with British spelling '-ller'.
Medieval jewellers were among the first people to need magnifying glasses—around the 1300s-1400s, they pushed optical technology forward because tiny details on jewelry required magnification.
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