Concierge baffled having piece returned for jeweller (7)

I believe the answer is:

faberge

I'm a little stuck... Click here to teach me more about this clue!

'for jeweller' is the definition.
(I've seen this before)

I don't understand the rest of the clue.

(Other definitions for faberge that I've seen before include "fine Russian jewellery?" , "Renowned jeweller" , "Russian goldsmith known for his jewelled Easter eggs" .)

I've seen this clue in The Guardian.

Want a hint initially instead of a full solution? Install my app