Achieve a contemporary kitchen with clean lines by incorporating luxurious marble elements. Use marble countertops, backsplash, or even a marble kitchen island to create a sophisticated and high-end look. Opt for sleek and minimalistic cabinetry with hidden handles to maintain a clean and streamlined appearance. Install high-end appliances with a stainless steel finish for a modern touch. Add pendant lights or recessed lighting to enhance the overall ambiance. Consider adding a statement piece, such as a chandelier or a large piece of artwork, to elevate the luxurious feel. Keep the overall design elegant and clutter-free to maintain the clean lines and high-end aesthetic.