Hero prompt: Modern luxury long necklace in 18K yellow gold ins...

Modern luxury long necklace in 18K yellow gold inspired by contemporary Italian high jewelry aesthetics and minimalist couture design. The necklace features a sleek elongated silhouette with a delicate snake chain and asymmetrical floating gold elements placed organically along the chain. At the center, a polished oval sliding element connects two elegant vertical drop chains of different lengths, creating a refined lariat effect. The drops end with sculptural teardrop-shaped gold pendants in smooth mirror-polished finish, one larger and one smaller for an asymmetrical luxury balance. A floating bezel-set round brilliant diamond is integrated subtly along one vertical chain, adding a delicate high-end sparkle. The design should feel sophisticated, fluid, feminine, and timeless with clean architectural lines and soft sensual movement inspired by Bulgari, Pomellato, Tiffany, and contemporary Milano jewelry design. Elegant proportions, quiet luxury mood, and modern wearable glamour. Matrixable and casting-friendly jewelry construction with realistic thickness, lightweight engineering, smooth comfort surfaces, production-ready geometry, hidden structural reinforcement, and balanced weight suitable for 18K gold manufacturing. Ultra realistic jewelry photography, warm champagne-beige tones, satin silk fabric styling, macro studio lighting, high polish yellow gold finish, photorealistic diamond details, shallow depth of field, luxury editorial campaign aesthetic, sophisticated Italian fashion atmosphere.