Opal, e.g. (3)
I believe the answer is:
gem
(Other definitions for gem that I've seen before include "Emerald or sapphire, say" , "A jewel or precious stone" , "Treasured person" , "Kindness; comfort (German)" , "perfect specimen" .)
I believe the answer is:
gem
(Other definitions for gem that I've seen before include "Emerald or sapphire, say" , "A jewel or precious stone" , "Treasured person" , "Kindness; comfort (German)" , "perfect specimen" .)