Keep the ring from the uploaded image exactly as is — same geometry, same diamond cut and count, same polished white gold finish, same proportions and reflections. Place it standing upright on a slab of black slate with a matte rough texture and natural chipped edges. Background is a deep dark grey gradient, clean and featureless. Directional side lighting with soft diffusion so the diamonds throw sharp specular highlights and the metal catches a crisp rim reflection. Subtle mirror reflection of the ring on the stone. Shallow depth of field focused on the diamonds, macro shot, photorealistic luxury jewelry studio photography, 8K.
