Use the uploaded product photo as the only reference for the item. Create a photorealistic square 1:1 ecommerce hero image of the exact gold ring with an oval blue stone, preserving its silhouette, proportions, metal color, stone shape and color, setting, number of components, and visible construction details. Show the whole piece centered on a seamless pure-white background with soft even studio light, crisp focus, controlled reflections, and a light natural contact shadow. Keep the product prominent with clean white space around it. Do not add, remove, duplicate, or redesign any part. No extra jewelry, hands, packaging, text, logo, watermark, border, or invented details. Compare the generated result with the real ring before publishing.