A shimmering blue pendant with a green inner layer and a fiery red core

a shimmering blue pendant with a green inner layer and a fiery red core, suspended from a golden chain, ultra-detailed, realistic, photorealistic, photo-realistic:1.37, extremely detailed description, professional, vivid colors, high quality, best quality, 8k, masterpiece:1.2, jewelry, ornament, enchanting, elegant, layered, celestial, radiant, pulsing, mysterious, captivating, glowing, warm, sun-kissed, precious, mesmerizing