Uncovered blue and silver inlaid Fabergé creation turning up in cases (7)
I believe the answer is:
luggage
'cases' is the definition.
(I've seen this before)
I don't understand the rest of the clue.
(Other definitions for luggage that I've seen before include "Travel bags" , "Belongings" , "Travelling cases" , "Traps" , "gear carried" .)