Emerald:
Emerald promotes good, fair judgement and calms the mind. It also brings sincerity and develops self-confidence, while creating harmony between thought and feeling.

Red Jasper:
Red Jasper develops your faculties of expression and stimulates initiative. It also helps you understand situations and helps you to concentrate. It is a stone of continuity and stability, creating faith in yourself and giving you the energy to reach your goals.

Ruby:
Ruby stimulates courage and will give you the energy to overcome the obstacles in your path. It develops concentration and conscientiousness, as well as affection towards those around you. It will also strengthen your weak points, and help you to turn situations round to your advantage.