Design an exquisite and eye-catching nail art that blends intricate geometric patterns with delicate metallic accents. Use a sophisticated color palette of deep blues and rich golds to create an atmosphere of elegance and mystery. Combine soft gradients with sharp, angular lines to offer a unique texture and depth to the nails. Consider incorporating tiny gemstone embellishments to add a luxurious touch. The design should embody opulence while maintaining a chic, modern aesthetic.