Subject: A diamond with a standard brilliant round cut, serving as the core focal point of the image. Scene: Pure solid black background, without any additional environmental elements. Style: Exquisite realistic 3D rendering style, combining high-end luxury visual texture, with delicate and realistic detail rendering. Color tone: Based on the transparent and bright cool-toned crystal texture of the diamond, paired with warm golden-orange luminous flow emitting from the diamond's interior and facets, the overall color has a sharp contrast, appearing luxurious and high-grade. Lighting: Using directional soft light, after the light penetrates and reflects or refracts through the diamond's multi-faceted cuts, flowing warm light streaks form inside the diamond, the edge of each facet has a bright highlight outline, and the dark background effectively sets off the diamond's brightness and brilliance. Composition: Using golden section composition with top-bottom layout, the diamond is located in the upper-middle part of the image, accounting for about half of the frame, overall centered and neat, with a stable and prominent visual focus, no text. Purpose: Can be used for design-style inspirational posters, high-end decorative paintings, and creative promotional materials.