Use the provided white-background product image as the locked product reference. Keep the diamond ring unchanged: emerald-cut rectangular center stone, halo of small round diamonds, slim pave band, silver/white-gold metal, prongs, sparkle, proportions, and low resting angle. Create a vertical luxury jewelry poster with warm champagne silk, soft folds, polished beige reflective surface, and wood jewelry tray edge. Change the silk fold direction, tray shape, ring placement, reflection position, and background depth of field from the original. Lighting: warm soft jewelry light, crisp diamond sparkle, elegant premium mood. Constraints: preserve ring structure and stone details; no extra poster text, no watermark, no border. Avoid: changed stone cut, missing halo diamonds, distorted band, copied silk fold, copied tray position, hands, people.