diamond gemstone 3d model

Create an ultra-realistic macro photograph of a flawless natural diamond gemstone. The diamond should be completely transparent with razor-sharp, perfectly cut facets in a classic brilliant cut. Emphasize strong light dispersion and rainbow fire as white light passes through the stone, creating vivid spectral colors and caustic patterns on the surface below. Show precise internal reflections and refractions bouncing between the facets. The surface should be mirror-polished with microscopic scratches visible under macro lighting. Place the diamond on a dark matte background to enhance contrast. Use dramatic studio lighting from one side to create intense sparkle, depth, and realistic reflections. Capture it as if shot with a professional DSLR macro lens, high dynamic range, photorealistic, 8k detail, sharp focus, realistic shadows, cinematic lighting.photograph of a natural emerald gemstone. The emerald should be deep vivid green with slight blue undertones, showing natural inclusions and internal fractures t