der Juwelier
jeweler
A person whose profession is making, selling, or repairing jewelry, gemstones, and watches.
Der Juwelier hat den Diamanten fachmännisch in den Ring eingesetzt.
The jeweler expertly set the diamond into the ring.

jeweler
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jeweler
A person whose profession is making, selling, or repairing jewelry, gemstones, and watches.
Der Juwelier hat den Diamanten fachmännisch in den Ring eingesetzt.
The jeweler expertly set the diamond into the ring.

The word is derived from 'das Juwel' (jewel, piece of jewelry). The ending '-ier' often refers to a male person who practices a certain profession, frequently in words of French origin.
Ein Juwel ist ein besonders wertvoller Edelstein.
A jewel is a particularly valuable gemstone.
The verb often reveals whether the person or the shop is meant. If the person is acting, e.g. 'beraten' (to advise) or 'reparieren' (to repair), it refers to the person. If you go to a place or buy something there, it refers to the shop.
Der Juwelier hat mich sehr gut beraten.
The jeweler gave me very good advice.
To express the difference between location and direction, different prepositions and cases are used: 'zum Juwelier gehen' (to go to the jewelry store; direction, accusative) and 'beim Juwelier sein/kaufen' (to be/buy at the jewelry store; location, dative).
Er fährt zum Juwelier, um einen Verlobungsring auszusuchen.
He is driving to the jewelry store to choose an engagement ring.
watchmaker
'Juwelier' and 'Uhrmacher' both have to do with watches and can therefore easily be confused. A 'Juwelier' mainly sells or repairs jewelry, gemstones, and often watches as well. The word can also refer to the shop. An 'Uhrmacher' is the specialist for watches and clocks: he or she makes, repairs, or maintains them. If you want to buy a ring, you go to the jeweler. If a watch is technically broken, 'Uhrmacher' is more precise.

Beim Juwelier kauft Tom einen kleinen Ring für seine Freundin.
At the jeweler’s, Tom buys a small ring for his girlfriend.
Zum Reparieren der alten Armbanduhr bringt Maria sie zu einem Uhrmacher.
To have the old wristwatch repaired, Maria takes it to a watchmaker.