Place the saffron threads in a small bowl with 1 tablespoon of warm water and let soak to bloom.
In a medium bowl, combine the cubed chicken breast with the Greek yogurt, turmeric, garam masala, sea salt, and black pepper; marinate for 15 minutes.
Heat the ghee in a large non-stick skillet over medium heat and sauté the diced onion until softened and translucent.
Add the minced garlic and grated ginger to the skillet, stirring for 1 minute until fragrant.
Stir in the diced tomatoes and cook for 2-3 minutes until they begin to break down.
Add the marinated chicken to the skillet and cook for 6-8 minutes, stirring occasionally, until the chicken is cooked through and the sauce has thickened.
Gently fold the cooked basmati rice and the saffron water into the chicken mixture until the rice is evenly coated and golden.
Cover the skillet with a lid and reduce heat to low, allowing the flavors to steam together for 3 minutes.
Garnish with freshly chopped cilantro and serve warm.