{
"prompt": "High-end jewellery marketing photography using the uploaded jewellery image. Place the jewellery on a glossy black mirror surface creating a subtle reflection. Dark luxury environment, controlled studio lighting with sharp highlights on gemstones and smooth gradients on metal surfaces. Ultra-clean background, premium commercial advertising style, dramatic shadows, cinematic look, hyper-realistic texture, no human, no text, no logo, luxury black theme, 8K ultra-detailed render.",
"style": "luxury jewelry advertisement",
"background": "black mirror reflective surface",
"lighting": "high contrast studio lighting"
}