I stumbled upon another stunning image of a six-rayed star rose quartz at the following URL :-
The rose quartz with a well defined six-rayed star is translucent and has a deep-pink color. The weight of the stone is approximately 1,250 carats and its diameter 60 mm. The stone described as a "Little sphere of platinum star rose quartz" is given the grade "platinum" to refer to its exceptional quality. The star rose quartz of Madagascar origin is price marked US$ 2,580.