Luxury Diamond Ring on Blue Leather

Generate a hyper-realistic image of a luxurious diamond ring on a textured blue surface, with the ring positioned at an angle and casting a shadow. The ring features a large, round diamond as its centerpiece, surrounded by smaller diamonds on the band and a blue gemstone accent. The band is made of silver or white gold and has a smooth, polished finish. The background is a deep blue, textured surface that appears to be leather or suede. The lighting is dramatic, with a bright light source casting rays and shadows on the ring and background. The overall effect is one of luxury and sophistication, with the ring appearing to be a high-end jewelry piece. The image should be rendered in high detail, with realistic textures and lighting. The style should be reminiscent of a high-end jewelry advertisement or editorial feature.