Create a highly realistic and detailed image of a majestic eagle with its entire body crafted from shiny, luxurious ruby gemstone. The eagle’s form should showcase its powerful and elegant posture, with wings outstretched or perched confidently. The ruby surface is polished and faceted, reflecting light in vibrant red hues, giving the eagle an iridescent, jewel-like appearance. Each feather appears as an intricately carved ruby, shimmering with depth and brilliance. The eagle's sharp eyes and beak remain detailed to highlight its commanding presence. Place this ruby eagle in a mountainous or rocky cliffside setting, with a wide view of the sky and subtle sunlight casting golden highlights, emphasizing the eagle’s grandeur and its natural habitat. Render in a photorealistic style, focusing on intricate textures, light play, and the dramatic balance between the gemstone's luxurious appearance and the eagle's natural strength.