Design a premium diamond jewel inspired by a heraldic shield containing the letters D and M intertwined by art nouveau elements. Evoke royal elegance and timeless sophistication, combining opulence with modern minimalism in a Bvlgari style. Use a rich color palette of emerald greens, gold accents, and diamond highlights. Integrate intricate phoenix motifs into a clean, minimalist design. Showcase high-quality images with crisp, detailed craftsmanship. Combine elegant typefaces with modern serifs and sans-serifs. Subtle animations should enhance the user experience. The overall design should be luxurious, modern, and trendy, appealing to a discerning clientele.