Luxury Emerald Ring with Diamond Halo

Generate a hyper-realistic image of a luxurious emerald ring with a large, rectangular-cut green gemstone surrounded by a halo of smaller, round diamonds, set in a gold band, placed on a dark green, sparkly fabric background with soft, natural lighting and subtle shadows, emphasizing the intricate details of the jewelry and the texture of the fabric, with a shallow depth of field to blur the background and focus on the ring, using a macro photography style to capture the sparkle and shine of the gemstones.