ultra lifelike macro shot of a hand wearing a large oval diamond engagement ring, focus on ring finger, highly finely detailed skin texture with natural lines and pores, no smoothing, diamond with crisp facets and lifelike light refraction, delicate sparkle without artificial glow, polished polished metal band with accurate reflections, dark black backdrop, gentle directional illumination from side creating gentle shadows, minimal layout, centered framing, shallow depth of field, 85mm macro lens, crisp focus on diamond, high-end high-luxury jewelry photography aesthetic, no ai artifacts --ar 2:3 --aesthetic raw --v 6