Here is a nice chunky square moonstone ring with plenty of flash.  The sides have beautiful leaves and swirls going down the shoulders of the band.  All set in sterling silver. 
sz 8
 
Moonstone crystals are linked with the energy of the moon, channels the brilliant white illumination of moonbeams shining light on your pathway to balance and harmony because it embodies the energy of light, connecting with a Moonstone crystal also works to raise your vibration and uplift your spirit.