Use the provided white-background product image as the locked reference. Preserve the white-gold halo engagement ring, central round diamond, four prongs, pavé halo, pavé band, diamond cuts, metal color, and diagonal angle. Create a new luxury macro poster with distinctly reshaped ivory satin folds, a fresh soft-shadow direction, and restrained natural sparkle. No added poster text, watermark, border, hands, fingers, duplicate rings, altered gem cuts, or exaggerated reflections.