When buying a marble chess set, focus on quality craftsmanship to ensure durability and elegance. Choose genuine marble for authenticity and long-lasting appeal. Consider the size of the board and pieces to suit your space and playing style. Opt for weighted pieces for better stability during play. Match the set’s color and design to your décor for a stylish display. Lastly, check for smooth finishing to avoid scratches and ensure a premium feel, making your chess set both functional and decorative.