Craft a sophisticated builder gel nail design that embraces the ethereal beauty of the cosmos. Integrate hints of delicate white stars and soft pink nebula-like swirls on a base that mimics the vastness of deep space in deep blues and purples. Finish the design with a subtle shimmer across the surface, effortlessly capturing the mystique of a clear night sky. Emphasize both glamour and elegance in this celestial-inspired manicure, ideal for any occasion where you want to shine like the stars above.