A hyper-realistic 4K close-up photograph of a beautiful woman’s neck and upper chest wearing a luxurious gold necklace with an elegant curved pendant featuring a small diamond at one end. The focus is on the jewelry — the pendant should appear glossy, perfectly polished, and highly detailed. The model’s skin is smooth, warm-toned, and softly illuminated with golden light reflections enhancing the jewelry’s shine. The lighting is even and diffused, creating a rich, natural glow across her collarbones and décolletage. The composition excludes the model’s face — only her neck, shoulders, and upper chest are visible. She is wearing a simple, low-cut black top that accentuates the necklace. The background is softly blurred in neutral tones, ensuring the pendant and chain are the center of attention. The image should look like a professional luxury jewelry advertisement, extremely realistic, elegant, and refined, with cinematic lighting and fine details visible in the gold texture and diamond sparkle.