Assertion: stone's color | /r/HasProperty | popular
Facets:
value: because of its attractive purple color
type: CAUSE
value: extremely
type: DEGREE
Source sentences:
text: The honey color is considered to be top-grade by many gemologists but the lemon yellow colors are also popular and attractive.
text: Color in Amethyst Amethyst is an extremely popular gem because of its attractive purple color.