High-end high-luxury jewelry studio photography of a white gold ring with a pear-shaped deep red ruby and baguette-cut diamond side stones standing upright on a dark navy textured surface. Dramatic spotlight illumination from the upper side creates a luminous highlight on the gemstone and a long sophisticated shadow cast across the surface. Backdrop is deep dark blue fading into black creating a moody high-luxury atmosphere. Crisp reflections on the ruby facets and metal band, shallow depth of field, film-like high-fashion jewelry ad brand campaign aesthetic, hyper-lifelike, 8k resolution.