List of recommended stones and their uses:
Red Jasper - Protection & Grounding.
Orange Carnelian - Grounding, anchors, calms, restores.
Yellow Jasper - Courage, promotes positive life choices.
Green Aventurine - Heart, balances blood pressure, anti-inflammatory effect.
Blue Lace Agate - Allows free expression of thought and feelings
Sodalite - Opens spiritual perception
Snow Quartz - Deep inner spiritual wisdom
If you can?t get those particular ones, then from a Chakra balancing point of view you can swop them for other stones of the same colour ? although the individual properties of the stone would be different.