The Philosophers' Stone
according to
  The New York Times—

http://www.log24.com/log/pix10A/100518-TheStoneNYT.jpg

Related material
from French cinema—

"a 'non-existent myth' of a battle between
goddesses of the sun and the moon
for a mysterious blue diamond
that has the power to make
mortals immortal and vice versa."

See also

   Word and Image—

Juliette Binoche in 'Blue'  The 24 2x2 Cullinane Kaleidoscope animated images

* The title is a reference to Jim Dodge's 1989 novel Stone Junction: An Alchemical Potboiler.