Luxury Pearl Jewelry Collection Mockup

Generate a hyper-realistic mockup image of a luxury pearl jewelry collection, featuring 16 distinct pieces arranged in a 4x4 grid on a neutral beige background. Each piece is showcased on a rectangular card with a unique muted color, including shades of cream, pink, green, brown, purple, tan, gray, and blue. The jewelry pieces are crafted from gold and feature white pearls in various designs, such as earrings, necklaces, and a bracelet. The overall aesthetic is elegant and sophisticated, with a focus on showcasing the beauty of the pearls and the craftsmanship of the goldwork. The image should have realistic lighting, natural shadows, and detailed textures, with a refined styling that emphasizes the luxury and high-end quality of the jewelry. The cards should have a subtle texture, and the background should be a smooth, creamy beige. The overall mood is one of understated elegance and refinement, perfect for a high-end design editorial or campaign photograph.