Luxury Diamond Ring in Elegant Ring Box

Generate a hyper-realistic image of a luxurious diamond ring showcased in an elegantly designed ring box, with the ring featuring a large, round-cut diamond set in a gold band, placed on a soft, cream-colored velvet cushion within the box, the box having a black exterior with gold trim and an open lid revealing a matching cream-colored interior, all set against a dark, shadowy background that highlights the brilliance of the diamond and the luxuriousness of the presentation, with realistic lighting that casts subtle shadows and brings out the intricate details of the ring and the box.