Semi-precious stone (6)
(Other definitions for jasper that I've seen before include "Reddish-brown stone used in jewellery" , "Opaque quartz" , "Gemstone" , "stone used by jewellers" , "hard matter" .)
'semi-precious stone' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for garnet that I've seen before include "Precious stone, usually red" , "Semi-precious stone of deep transparent red" , "Deep red gem stone" , "Deep red gemstone" , "Glassy red, yellow or green gemstone" .)
'semi-precious stone' is the definition.
(I've seen this in another clue)
This is all the clue.
(Other definitions for opal that I've seen before include "Milky-white gemstone with flashes of colour" , "item in Hatton Garden?" , "Semi-transparent gem" , "Delicately coloured gem" , "Something milky-white" .)
'semi-precious stone' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for onyx that I've seen before include "Agate with alternating bands of colour" , "Agate with different layers of colour" , "Stone-like marble with different colours in layers" , "Marbled stone with layers of colours" , "Form of agate" .)
'semiprecious stone' is the definition.
(I've seen this before)
This is the entire clue.
(Other definitions for jade that I've seen before include "Green ornamental stone" , "Greenish, semi-precious stone" , "Ornamental semiprecious stone" , "Green gem" , "Worthless horse" .)
'semiprecious stone' is the definition.
(I've seen this before)
This is all the clue.
(Other definitions for agate that I've seen before include "Hard stone with concentric bands of colour" , "Striped stone" , "rock with bands" , "Banded ornamental stone" , "Semi-precious stone" .)