Rinse the basmati rice under cold water until clear, then combine in a small pot with 0.5 cup water and the saffron threads.
Bring the rice to a boil, then reduce heat to low, cover, and simmer for 15 minutes or until water is absorbed.
While rice cooks, heat the ghee in a large skillet over medium heat and sauté the diced onion until translucent.
Stir in the ginger paste, garlic paste, turmeric, garam masala, and coriander, cooking for 1 minute until fragrant.
Add the cubed chicken breast to the skillet, seasoning with sea salt and black pepper, and brown on all sides for 5-7 minutes.
Reduce the heat to low and gently fold in the Greek yogurt, stirring constantly to prevent curdling until a thick sauce forms.
Simmer the chicken in the sauce for an additional 3-4 minutes until cooked through.
Fluff the saffron rice with a fork and serve the chicken korma on top, garnished with fresh cilantro.