Your Cartier writing instrument may be cleaned using a soft cloth to restore its shine. Do not apply any other product to the cloth.
Avoid any contact with aggressive substances such as alcohol, glue, acetone, nail polish, etc. For all silver-plated parts, it is recommended that you use a special cloth designed for silverware, since silver is a precious metal that can develop oxidation marks. This natural phenomenon may be accentuated by contact with leather or rubber.
Pink gold may change color naturally over time. If you wish to regain its original coloring, you are recommended to clean your pink gold-plated pen using a cloth specially designed for polishing gold surfaces.