BLUE, SPACE: Tanzanite or Blue topaz
YELLOW, MIND: Citrine
RED, REALITY: Raspberry rhodolite garnet
PURPLE, POWER: Amethyst
GREEN, TIME: Tourmaline or Peridot
ORANGE, SOUL: Amber
This should help you find what your looking for.
Some stones can be pricey as per their size but hell. Can you really place a price on perfection?
I should also warn you that these stones have a low rating on the MOHS SCALE. The scale measures hardness. DO NOT POUND YOUR FIST AGAINST ANYTHING. Or you'll have broken stones. Best of luck to you...