Engraving in low relief on a brooch or stone (5)

I believe the answer is:

cameo

(Other definitions for cameo that I've seen before include "relief work" , "Carved brooch - small role" , "Carving in low relief" , "Brooch with an engraving in low relief" , "Small part for star actor" .)

I've seen this clue in The Guardian.

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