subdermal LED chain necklace, (internal LED glow:1.6), (embedded LEDs:1.6) forming a minimalist chain pattern beneath the skin, soft light flowing from beneath the collarbone, (classic chain design:1.5), high-definition, subtle and refined light accents, ultra-realistic skin textures, (natural skin tone with light diffusion:1.5), seamless integration of light and skin, timeless elegance, perfect for both formal and casual settings, (worn jewelry:-1.8), (visible necklace:-1.8), (clunky design:-1.5), smooth, radiant light transitions, modern and sophisticated tech-enhanced beauty