Crossword Genius

Precious stones (8)

Ross

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'precious stones' is the definition.
(I've seen this in another clue)

This is all the clue.

(Other definitions for opals that I've seen before include "Iridescent gems" , "Milky white and coloured gems" , "Semi-precious stones of milky or bluish colour" , "jewellery" , "jewels" .)

I've seen this clue in The Sun.
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