A women's ring, detailed and decorative, moderately ornate. Create a photorealistic high-end jewelry design for a 1.90 ct laboratory-grown marquise diamond, exact measurements 12.81 × 6.39 × 4.11 mm, E color, VS2. The marquise must remain its true elongated marquise shape and proportions and must be mounted east-to-west (horizontal). Design it as an extremely minimalist solitaire on a straight, flat 2.0 mm yellow-gold band. The aesthetic is architectural, refined, and almost invisible rather than traditional or ornate. The diamond should appear to float just above the band. Use only the minimum visible metal necessary to secure the stone: two tiny, delicate claw-style prongs positioned at the extreme left and right points of the marquise, gripping the girdle rather than extending visibly onto the crown. The prongs should be narrow and flattened, following the contour of the stone. Do not use round/bead prongs. Do not use V-prongs. Do not use chevron-shaped prongs. Do not use a bezel. Do not use a halo. Do not add decorative metal around the diamond. The structural support should be a very thin, recessed gallery rail underneath the diamond, positioned toward the pavilion so that it is largely hidden when viewed from above. The flat band should remain visually clean and uninterrupted beneath the stone. The goal is that when viewed from the front, the viewer primarily sees the marquise itself and an uninterrupted flat gold band, with only tiny hints of gold at the two points revealing how the stone is secured. Make the ring physically plausible for fabrication by an experienced bench jeweler. The diamond must have realistic depth and pavilion geometry; do not flatten it to make it look thinner. Maintain appropriate clearance between the diamond and finger. Render the actual proportions of a 12.81 × 6.39 mm marquise, not a generic oversized marquise. The stone should look substantial relative to the 2 mm band. Show three views of the same ring: straight-on front view, side profile, and three-quarter view. Neutral luxury jewelry photography, polished yellow gold, no additional gemstones.